Metamath Proof Explorer


Theorem mulsproplem13

Description: Lemma for surreal multiplication. Remove the restriction on C and D from mulsproplem12 . (Contributed by Scott Fenton, 5-Mar-2025)

Ref Expression
Hypotheses mulsproplem.1 ( 𝜑 → ∀ 𝑎 No 𝑏 No 𝑐 No 𝑑 No 𝑒 No 𝑓 No ( ( ( ( bday 𝑎 ) +no ( bday 𝑏 ) ) ∪ ( ( ( ( bday 𝑐 ) +no ( bday 𝑒 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑓 ) ) ) ∪ ( ( ( bday 𝑐 ) +no ( bday 𝑓 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑒 ) ) ) ) ) ∈ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ) → ( ( 𝑎 ·s 𝑏 ) ∈ No ∧ ( ( 𝑐 <s 𝑑𝑒 <s 𝑓 ) → ( ( 𝑐 ·s 𝑓 ) -s ( 𝑐 ·s 𝑒 ) ) <s ( ( 𝑑 ·s 𝑓 ) -s ( 𝑑 ·s 𝑒 ) ) ) ) ) )
mulsproplem.2 ( 𝜑𝐶 No )
mulsproplem.3 ( 𝜑𝐷 No )
mulsproplem.4 ( 𝜑𝐸 No )
mulsproplem.5 ( 𝜑𝐹 No )
mulsproplem.6 ( 𝜑𝐶 <s 𝐷 )
mulsproplem.7 ( 𝜑𝐸 <s 𝐹 )
mulsproplem13.1 ( 𝜑 → ( ( bday 𝐸 ) ∈ ( bday 𝐹 ) ∨ ( bday 𝐹 ) ∈ ( bday 𝐸 ) ) )
Assertion mulsproplem13 ( 𝜑 → ( ( 𝐶 ·s 𝐹 ) -s ( 𝐶 ·s 𝐸 ) ) <s ( ( 𝐷 ·s 𝐹 ) -s ( 𝐷 ·s 𝐸 ) ) )

Proof

Step Hyp Ref Expression
1 mulsproplem.1 ( 𝜑 → ∀ 𝑎 No 𝑏 No 𝑐 No 𝑑 No 𝑒 No 𝑓 No ( ( ( ( bday 𝑎 ) +no ( bday 𝑏 ) ) ∪ ( ( ( ( bday 𝑐 ) +no ( bday 𝑒 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑓 ) ) ) ∪ ( ( ( bday 𝑐 ) +no ( bday 𝑓 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑒 ) ) ) ) ) ∈ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ) → ( ( 𝑎 ·s 𝑏 ) ∈ No ∧ ( ( 𝑐 <s 𝑑𝑒 <s 𝑓 ) → ( ( 𝑐 ·s 𝑓 ) -s ( 𝑐 ·s 𝑒 ) ) <s ( ( 𝑑 ·s 𝑓 ) -s ( 𝑑 ·s 𝑒 ) ) ) ) ) )
2 mulsproplem.2 ( 𝜑𝐶 No )
3 mulsproplem.3 ( 𝜑𝐷 No )
4 mulsproplem.4 ( 𝜑𝐸 No )
5 mulsproplem.5 ( 𝜑𝐹 No )
6 mulsproplem.6 ( 𝜑𝐶 <s 𝐷 )
7 mulsproplem.7 ( 𝜑𝐸 <s 𝐹 )
8 mulsproplem13.1 ( 𝜑 → ( ( bday 𝐸 ) ∈ ( bday 𝐹 ) ∨ ( bday 𝐹 ) ∈ ( bday 𝐸 ) ) )
9 1 adantr ( ( 𝜑 ∧ ( ( bday 𝐶 ) ∈ ( bday 𝐷 ) ∨ ( bday 𝐷 ) ∈ ( bday 𝐶 ) ) ) → ∀ 𝑎 No 𝑏 No 𝑐 No 𝑑 No 𝑒 No 𝑓 No ( ( ( ( bday 𝑎 ) +no ( bday 𝑏 ) ) ∪ ( ( ( ( bday 𝑐 ) +no ( bday 𝑒 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑓 ) ) ) ∪ ( ( ( bday 𝑐 ) +no ( bday 𝑓 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑒 ) ) ) ) ) ∈ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ) → ( ( 𝑎 ·s 𝑏 ) ∈ No ∧ ( ( 𝑐 <s 𝑑𝑒 <s 𝑓 ) → ( ( 𝑐 ·s 𝑓 ) -s ( 𝑐 ·s 𝑒 ) ) <s ( ( 𝑑 ·s 𝑓 ) -s ( 𝑑 ·s 𝑒 ) ) ) ) ) )
10 2 adantr ( ( 𝜑 ∧ ( ( bday 𝐶 ) ∈ ( bday 𝐷 ) ∨ ( bday 𝐷 ) ∈ ( bday 𝐶 ) ) ) → 𝐶 No )
11 3 adantr ( ( 𝜑 ∧ ( ( bday 𝐶 ) ∈ ( bday 𝐷 ) ∨ ( bday 𝐷 ) ∈ ( bday 𝐶 ) ) ) → 𝐷 No )
12 4 adantr ( ( 𝜑 ∧ ( ( bday 𝐶 ) ∈ ( bday 𝐷 ) ∨ ( bday 𝐷 ) ∈ ( bday 𝐶 ) ) ) → 𝐸 No )
13 5 adantr ( ( 𝜑 ∧ ( ( bday 𝐶 ) ∈ ( bday 𝐷 ) ∨ ( bday 𝐷 ) ∈ ( bday 𝐶 ) ) ) → 𝐹 No )
14 6 adantr ( ( 𝜑 ∧ ( ( bday 𝐶 ) ∈ ( bday 𝐷 ) ∨ ( bday 𝐷 ) ∈ ( bday 𝐶 ) ) ) → 𝐶 <s 𝐷 )
15 7 adantr ( ( 𝜑 ∧ ( ( bday 𝐶 ) ∈ ( bday 𝐷 ) ∨ ( bday 𝐷 ) ∈ ( bday 𝐶 ) ) ) → 𝐸 <s 𝐹 )
16 simpr ( ( 𝜑 ∧ ( ( bday 𝐶 ) ∈ ( bday 𝐷 ) ∨ ( bday 𝐷 ) ∈ ( bday 𝐶 ) ) ) → ( ( bday 𝐶 ) ∈ ( bday 𝐷 ) ∨ ( bday 𝐷 ) ∈ ( bday 𝐶 ) ) )
17 8 adantr ( ( 𝜑 ∧ ( ( bday 𝐶 ) ∈ ( bday 𝐷 ) ∨ ( bday 𝐷 ) ∈ ( bday 𝐶 ) ) ) → ( ( bday 𝐸 ) ∈ ( bday 𝐹 ) ∨ ( bday 𝐹 ) ∈ ( bday 𝐸 ) ) )
18 9 10 11 12 13 14 15 16 17 mulsproplem12 ( ( 𝜑 ∧ ( ( bday 𝐶 ) ∈ ( bday 𝐷 ) ∨ ( bday 𝐷 ) ∈ ( bday 𝐶 ) ) ) → ( ( 𝐶 ·s 𝐹 ) -s ( 𝐶 ·s 𝐸 ) ) <s ( ( 𝐷 ·s 𝐹 ) -s ( 𝐷 ·s 𝐸 ) ) )
19 2 adantr ( ( 𝜑 ∧ ( bday 𝐶 ) = ( bday 𝐷 ) ) → 𝐶 No )
20 3 adantr ( ( 𝜑 ∧ ( bday 𝐶 ) = ( bday 𝐷 ) ) → 𝐷 No )
21 simpr ( ( 𝜑 ∧ ( bday 𝐶 ) = ( bday 𝐷 ) ) → ( bday 𝐶 ) = ( bday 𝐷 ) )
22 6 adantr ( ( 𝜑 ∧ ( bday 𝐶 ) = ( bday 𝐷 ) ) → 𝐶 <s 𝐷 )
23 nodense ( ( ( 𝐶 No 𝐷 No ) ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ 𝐶 <s 𝐷 ) ) → ∃ 𝑥 No ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) )
24 19 20 21 22 23 syl22anc ( ( 𝜑 ∧ ( bday 𝐶 ) = ( bday 𝐷 ) ) → ∃ 𝑥 No ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) )
25 unidm ( ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ∪ ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ) = ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) )
26 unidm ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) = ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) )
27 bday0s ( bday ‘ 0s ) = ∅
28 27 27 oveq12i ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) = ( ∅ +no ∅ )
29 0elon ∅ ∈ On
30 naddrid ( ∅ ∈ On → ( ∅ +no ∅ ) = ∅ )
31 29 30 ax-mp ( ∅ +no ∅ ) = ∅
32 28 31 eqtri ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) = ∅
33 25 26 32 3eqtri ( ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ∪ ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ) = ∅
34 33 uneq2i ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ∪ ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ) ) = ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ∅ )
35 un0 ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ∅ ) = ( ( bday 𝐶 ) +no ( bday 𝐹 ) )
36 34 35 eqtri ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ∪ ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ) ) = ( ( bday 𝐶 ) +no ( bday 𝐹 ) )
37 ssun1 ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ⊆ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) )
38 ssun2 ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ⊆ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) )
39 37 38 sstri ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ⊆ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) )
40 ssun2 ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ⊆ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) )
41 39 40 sstri ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ⊆ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) )
42 36 41 eqsstri ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ∪ ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ) ) ⊆ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) )
43 42 sseli ( ( ( ( bday 𝑎 ) +no ( bday 𝑏 ) ) ∪ ( ( ( ( bday 𝑐 ) +no ( bday 𝑒 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑓 ) ) ) ∪ ( ( ( bday 𝑐 ) +no ( bday 𝑓 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑒 ) ) ) ) ) ∈ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ∪ ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ) ) → ( ( ( bday 𝑎 ) +no ( bday 𝑏 ) ) ∪ ( ( ( ( bday 𝑐 ) +no ( bday 𝑒 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑓 ) ) ) ∪ ( ( ( bday 𝑐 ) +no ( bday 𝑓 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑒 ) ) ) ) ) ∈ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ) )
44 43 imim1i ( ( ( ( ( bday 𝑎 ) +no ( bday 𝑏 ) ) ∪ ( ( ( ( bday 𝑐 ) +no ( bday 𝑒 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑓 ) ) ) ∪ ( ( ( bday 𝑐 ) +no ( bday 𝑓 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑒 ) ) ) ) ) ∈ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ) → ( ( 𝑎 ·s 𝑏 ) ∈ No ∧ ( ( 𝑐 <s 𝑑𝑒 <s 𝑓 ) → ( ( 𝑐 ·s 𝑓 ) -s ( 𝑐 ·s 𝑒 ) ) <s ( ( 𝑑 ·s 𝑓 ) -s ( 𝑑 ·s 𝑒 ) ) ) ) ) → ( ( ( ( bday 𝑎 ) +no ( bday 𝑏 ) ) ∪ ( ( ( ( bday 𝑐 ) +no ( bday 𝑒 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑓 ) ) ) ∪ ( ( ( bday 𝑐 ) +no ( bday 𝑓 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑒 ) ) ) ) ) ∈ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ∪ ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ) ) → ( ( 𝑎 ·s 𝑏 ) ∈ No ∧ ( ( 𝑐 <s 𝑑𝑒 <s 𝑓 ) → ( ( 𝑐 ·s 𝑓 ) -s ( 𝑐 ·s 𝑒 ) ) <s ( ( 𝑑 ·s 𝑓 ) -s ( 𝑑 ·s 𝑒 ) ) ) ) ) )
45 44 6ralimi ( ∀ 𝑎 No 𝑏 No 𝑐 No 𝑑 No 𝑒 No 𝑓 No ( ( ( ( bday 𝑎 ) +no ( bday 𝑏 ) ) ∪ ( ( ( ( bday 𝑐 ) +no ( bday 𝑒 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑓 ) ) ) ∪ ( ( ( bday 𝑐 ) +no ( bday 𝑓 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑒 ) ) ) ) ) ∈ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ) → ( ( 𝑎 ·s 𝑏 ) ∈ No ∧ ( ( 𝑐 <s 𝑑𝑒 <s 𝑓 ) → ( ( 𝑐 ·s 𝑓 ) -s ( 𝑐 ·s 𝑒 ) ) <s ( ( 𝑑 ·s 𝑓 ) -s ( 𝑑 ·s 𝑒 ) ) ) ) ) → ∀ 𝑎 No 𝑏 No 𝑐 No 𝑑 No 𝑒 No 𝑓 No ( ( ( ( bday 𝑎 ) +no ( bday 𝑏 ) ) ∪ ( ( ( ( bday 𝑐 ) +no ( bday 𝑒 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑓 ) ) ) ∪ ( ( ( bday 𝑐 ) +no ( bday 𝑓 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑒 ) ) ) ) ) ∈ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ∪ ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ) ) → ( ( 𝑎 ·s 𝑏 ) ∈ No ∧ ( ( 𝑐 <s 𝑑𝑒 <s 𝑓 ) → ( ( 𝑐 ·s 𝑓 ) -s ( 𝑐 ·s 𝑒 ) ) <s ( ( 𝑑 ·s 𝑓 ) -s ( 𝑑 ·s 𝑒 ) ) ) ) ) )
46 1 45 syl ( 𝜑 → ∀ 𝑎 No 𝑏 No 𝑐 No 𝑑 No 𝑒 No 𝑓 No ( ( ( ( bday 𝑎 ) +no ( bday 𝑏 ) ) ∪ ( ( ( ( bday 𝑐 ) +no ( bday 𝑒 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑓 ) ) ) ∪ ( ( ( bday 𝑐 ) +no ( bday 𝑓 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑒 ) ) ) ) ) ∈ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ∪ ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ) ) → ( ( 𝑎 ·s 𝑏 ) ∈ No ∧ ( ( 𝑐 <s 𝑑𝑒 <s 𝑓 ) → ( ( 𝑐 ·s 𝑓 ) -s ( 𝑐 ·s 𝑒 ) ) <s ( ( 𝑑 ·s 𝑓 ) -s ( 𝑑 ·s 𝑒 ) ) ) ) ) )
47 46 2 5 mulsproplem11 ( 𝜑 → ( 𝐶 ·s 𝐹 ) ∈ No )
48 33 uneq2i ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ∪ ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ) ) = ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ∅ )
49 un0 ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ∅ ) = ( ( bday 𝐶 ) +no ( bday 𝐸 ) )
50 48 49 eqtri ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ∪ ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ) ) = ( ( bday 𝐶 ) +no ( bday 𝐸 ) )
51 ssun1 ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ⊆ ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) )
52 ssun1 ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ⊆ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) )
53 51 52 sstri ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ⊆ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) )
54 53 40 sstri ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ⊆ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) )
55 50 54 eqsstri ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ∪ ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ) ) ⊆ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) )
56 55 sseli ( ( ( ( bday 𝑎 ) +no ( bday 𝑏 ) ) ∪ ( ( ( ( bday 𝑐 ) +no ( bday 𝑒 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑓 ) ) ) ∪ ( ( ( bday 𝑐 ) +no ( bday 𝑓 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑒 ) ) ) ) ) ∈ ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ∪ ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ) ) → ( ( ( bday 𝑎 ) +no ( bday 𝑏 ) ) ∪ ( ( ( ( bday 𝑐 ) +no ( bday 𝑒 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑓 ) ) ) ∪ ( ( ( bday 𝑐 ) +no ( bday 𝑓 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑒 ) ) ) ) ) ∈ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ) )
57 56 imim1i ( ( ( ( ( bday 𝑎 ) +no ( bday 𝑏 ) ) ∪ ( ( ( ( bday 𝑐 ) +no ( bday 𝑒 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑓 ) ) ) ∪ ( ( ( bday 𝑐 ) +no ( bday 𝑓 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑒 ) ) ) ) ) ∈ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ) → ( ( 𝑎 ·s 𝑏 ) ∈ No ∧ ( ( 𝑐 <s 𝑑𝑒 <s 𝑓 ) → ( ( 𝑐 ·s 𝑓 ) -s ( 𝑐 ·s 𝑒 ) ) <s ( ( 𝑑 ·s 𝑓 ) -s ( 𝑑 ·s 𝑒 ) ) ) ) ) → ( ( ( ( bday 𝑎 ) +no ( bday 𝑏 ) ) ∪ ( ( ( ( bday 𝑐 ) +no ( bday 𝑒 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑓 ) ) ) ∪ ( ( ( bday 𝑐 ) +no ( bday 𝑓 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑒 ) ) ) ) ) ∈ ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ∪ ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ) ) → ( ( 𝑎 ·s 𝑏 ) ∈ No ∧ ( ( 𝑐 <s 𝑑𝑒 <s 𝑓 ) → ( ( 𝑐 ·s 𝑓 ) -s ( 𝑐 ·s 𝑒 ) ) <s ( ( 𝑑 ·s 𝑓 ) -s ( 𝑑 ·s 𝑒 ) ) ) ) ) )
58 57 6ralimi ( ∀ 𝑎 No 𝑏 No 𝑐 No 𝑑 No 𝑒 No 𝑓 No ( ( ( ( bday 𝑎 ) +no ( bday 𝑏 ) ) ∪ ( ( ( ( bday 𝑐 ) +no ( bday 𝑒 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑓 ) ) ) ∪ ( ( ( bday 𝑐 ) +no ( bday 𝑓 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑒 ) ) ) ) ) ∈ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ) → ( ( 𝑎 ·s 𝑏 ) ∈ No ∧ ( ( 𝑐 <s 𝑑𝑒 <s 𝑓 ) → ( ( 𝑐 ·s 𝑓 ) -s ( 𝑐 ·s 𝑒 ) ) <s ( ( 𝑑 ·s 𝑓 ) -s ( 𝑑 ·s 𝑒 ) ) ) ) ) → ∀ 𝑎 No 𝑏 No 𝑐 No 𝑑 No 𝑒 No 𝑓 No ( ( ( ( bday 𝑎 ) +no ( bday 𝑏 ) ) ∪ ( ( ( ( bday 𝑐 ) +no ( bday 𝑒 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑓 ) ) ) ∪ ( ( ( bday 𝑐 ) +no ( bday 𝑓 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑒 ) ) ) ) ) ∈ ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ∪ ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ) ) → ( ( 𝑎 ·s 𝑏 ) ∈ No ∧ ( ( 𝑐 <s 𝑑𝑒 <s 𝑓 ) → ( ( 𝑐 ·s 𝑓 ) -s ( 𝑐 ·s 𝑒 ) ) <s ( ( 𝑑 ·s 𝑓 ) -s ( 𝑑 ·s 𝑒 ) ) ) ) ) )
59 1 58 syl ( 𝜑 → ∀ 𝑎 No 𝑏 No 𝑐 No 𝑑 No 𝑒 No 𝑓 No ( ( ( ( bday 𝑎 ) +no ( bday 𝑏 ) ) ∪ ( ( ( ( bday 𝑐 ) +no ( bday 𝑒 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑓 ) ) ) ∪ ( ( ( bday 𝑐 ) +no ( bday 𝑓 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑒 ) ) ) ) ) ∈ ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ∪ ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ) ) → ( ( 𝑎 ·s 𝑏 ) ∈ No ∧ ( ( 𝑐 <s 𝑑𝑒 <s 𝑓 ) → ( ( 𝑐 ·s 𝑓 ) -s ( 𝑐 ·s 𝑒 ) ) <s ( ( 𝑑 ·s 𝑓 ) -s ( 𝑑 ·s 𝑒 ) ) ) ) ) )
60 59 2 4 mulsproplem11 ( 𝜑 → ( 𝐶 ·s 𝐸 ) ∈ No )
61 47 60 subscld ( 𝜑 → ( ( 𝐶 ·s 𝐹 ) -s ( 𝐶 ·s 𝐸 ) ) ∈ No )
62 61 adantr ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( ( 𝐶 ·s 𝐹 ) -s ( 𝐶 ·s 𝐸 ) ) ∈ No )
63 46 adantr ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ∀ 𝑎 No 𝑏 No 𝑐 No 𝑑 No 𝑒 No 𝑓 No ( ( ( ( bday 𝑎 ) +no ( bday 𝑏 ) ) ∪ ( ( ( ( bday 𝑐 ) +no ( bday 𝑒 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑓 ) ) ) ∪ ( ( ( bday 𝑐 ) +no ( bday 𝑓 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑒 ) ) ) ) ) ∈ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ∪ ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ) ) → ( ( 𝑎 ·s 𝑏 ) ∈ No ∧ ( ( 𝑐 <s 𝑑𝑒 <s 𝑓 ) → ( ( 𝑐 ·s 𝑓 ) -s ( 𝑐 ·s 𝑒 ) ) <s ( ( 𝑑 ·s 𝑓 ) -s ( 𝑑 ·s 𝑒 ) ) ) ) ) )
64 simprr1 ( ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) → ( bday 𝑥 ) ∈ ( bday 𝐶 ) )
65 64 adantl ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( bday 𝑥 ) ∈ ( bday 𝐶 ) )
66 bdayelon ( bday 𝐶 ) ∈ On
67 simprrl ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → 𝑥 No )
68 oldbday ( ( ( bday 𝐶 ) ∈ On ∧ 𝑥 No ) → ( 𝑥 ∈ ( O ‘ ( bday 𝐶 ) ) ↔ ( bday 𝑥 ) ∈ ( bday 𝐶 ) ) )
69 66 67 68 sylancr ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( 𝑥 ∈ ( O ‘ ( bday 𝐶 ) ) ↔ ( bday 𝑥 ) ∈ ( bday 𝐶 ) ) )
70 65 69 mpbird ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → 𝑥 ∈ ( O ‘ ( bday 𝐶 ) ) )
71 5 adantr ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → 𝐹 No )
72 63 70 71 mulsproplem2 ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( 𝑥 ·s 𝐹 ) ∈ No )
73 59 adantr ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ∀ 𝑎 No 𝑏 No 𝑐 No 𝑑 No 𝑒 No 𝑓 No ( ( ( ( bday 𝑎 ) +no ( bday 𝑏 ) ) ∪ ( ( ( ( bday 𝑐 ) +no ( bday 𝑒 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑓 ) ) ) ∪ ( ( ( bday 𝑐 ) +no ( bday 𝑓 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑒 ) ) ) ) ) ∈ ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ∪ ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ) ) → ( ( 𝑎 ·s 𝑏 ) ∈ No ∧ ( ( 𝑐 <s 𝑑𝑒 <s 𝑓 ) → ( ( 𝑐 ·s 𝑓 ) -s ( 𝑐 ·s 𝑒 ) ) <s ( ( 𝑑 ·s 𝑓 ) -s ( 𝑑 ·s 𝑒 ) ) ) ) ) )
74 4 adantr ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → 𝐸 No )
75 73 70 74 mulsproplem2 ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( 𝑥 ·s 𝐸 ) ∈ No )
76 72 75 subscld ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( ( 𝑥 ·s 𝐹 ) -s ( 𝑥 ·s 𝐸 ) ) ∈ No )
77 33 uneq2i ( ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ∪ ( ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ∪ ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ) ) = ( ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ∪ ∅ )
78 un0 ( ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ∪ ∅ ) = ( ( bday 𝐷 ) +no ( bday 𝐹 ) )
79 77 78 eqtri ( ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ∪ ( ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ∪ ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ) ) = ( ( bday 𝐷 ) +no ( bday 𝐹 ) )
80 ssun2 ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ⊆ ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) )
81 80 52 sstri ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ⊆ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) )
82 81 40 sstri ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ⊆ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) )
83 79 82 eqsstri ( ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ∪ ( ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ∪ ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ) ) ⊆ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) )
84 83 sseli ( ( ( ( bday 𝑎 ) +no ( bday 𝑏 ) ) ∪ ( ( ( ( bday 𝑐 ) +no ( bday 𝑒 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑓 ) ) ) ∪ ( ( ( bday 𝑐 ) +no ( bday 𝑓 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑒 ) ) ) ) ) ∈ ( ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ∪ ( ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ∪ ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ) ) → ( ( ( bday 𝑎 ) +no ( bday 𝑏 ) ) ∪ ( ( ( ( bday 𝑐 ) +no ( bday 𝑒 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑓 ) ) ) ∪ ( ( ( bday 𝑐 ) +no ( bday 𝑓 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑒 ) ) ) ) ) ∈ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ) )
85 84 imim1i ( ( ( ( ( bday 𝑎 ) +no ( bday 𝑏 ) ) ∪ ( ( ( ( bday 𝑐 ) +no ( bday 𝑒 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑓 ) ) ) ∪ ( ( ( bday 𝑐 ) +no ( bday 𝑓 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑒 ) ) ) ) ) ∈ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ) → ( ( 𝑎 ·s 𝑏 ) ∈ No ∧ ( ( 𝑐 <s 𝑑𝑒 <s 𝑓 ) → ( ( 𝑐 ·s 𝑓 ) -s ( 𝑐 ·s 𝑒 ) ) <s ( ( 𝑑 ·s 𝑓 ) -s ( 𝑑 ·s 𝑒 ) ) ) ) ) → ( ( ( ( bday 𝑎 ) +no ( bday 𝑏 ) ) ∪ ( ( ( ( bday 𝑐 ) +no ( bday 𝑒 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑓 ) ) ) ∪ ( ( ( bday 𝑐 ) +no ( bday 𝑓 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑒 ) ) ) ) ) ∈ ( ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ∪ ( ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ∪ ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ) ) → ( ( 𝑎 ·s 𝑏 ) ∈ No ∧ ( ( 𝑐 <s 𝑑𝑒 <s 𝑓 ) → ( ( 𝑐 ·s 𝑓 ) -s ( 𝑐 ·s 𝑒 ) ) <s ( ( 𝑑 ·s 𝑓 ) -s ( 𝑑 ·s 𝑒 ) ) ) ) ) )
86 85 6ralimi ( ∀ 𝑎 No 𝑏 No 𝑐 No 𝑑 No 𝑒 No 𝑓 No ( ( ( ( bday 𝑎 ) +no ( bday 𝑏 ) ) ∪ ( ( ( ( bday 𝑐 ) +no ( bday 𝑒 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑓 ) ) ) ∪ ( ( ( bday 𝑐 ) +no ( bday 𝑓 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑒 ) ) ) ) ) ∈ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ) → ( ( 𝑎 ·s 𝑏 ) ∈ No ∧ ( ( 𝑐 <s 𝑑𝑒 <s 𝑓 ) → ( ( 𝑐 ·s 𝑓 ) -s ( 𝑐 ·s 𝑒 ) ) <s ( ( 𝑑 ·s 𝑓 ) -s ( 𝑑 ·s 𝑒 ) ) ) ) ) → ∀ 𝑎 No 𝑏 No 𝑐 No 𝑑 No 𝑒 No 𝑓 No ( ( ( ( bday 𝑎 ) +no ( bday 𝑏 ) ) ∪ ( ( ( ( bday 𝑐 ) +no ( bday 𝑒 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑓 ) ) ) ∪ ( ( ( bday 𝑐 ) +no ( bday 𝑓 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑒 ) ) ) ) ) ∈ ( ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ∪ ( ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ∪ ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ) ) → ( ( 𝑎 ·s 𝑏 ) ∈ No ∧ ( ( 𝑐 <s 𝑑𝑒 <s 𝑓 ) → ( ( 𝑐 ·s 𝑓 ) -s ( 𝑐 ·s 𝑒 ) ) <s ( ( 𝑑 ·s 𝑓 ) -s ( 𝑑 ·s 𝑒 ) ) ) ) ) )
87 1 86 syl ( 𝜑 → ∀ 𝑎 No 𝑏 No 𝑐 No 𝑑 No 𝑒 No 𝑓 No ( ( ( ( bday 𝑎 ) +no ( bday 𝑏 ) ) ∪ ( ( ( ( bday 𝑐 ) +no ( bday 𝑒 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑓 ) ) ) ∪ ( ( ( bday 𝑐 ) +no ( bday 𝑓 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑒 ) ) ) ) ) ∈ ( ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ∪ ( ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ∪ ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ) ) → ( ( 𝑎 ·s 𝑏 ) ∈ No ∧ ( ( 𝑐 <s 𝑑𝑒 <s 𝑓 ) → ( ( 𝑐 ·s 𝑓 ) -s ( 𝑐 ·s 𝑒 ) ) <s ( ( 𝑑 ·s 𝑓 ) -s ( 𝑑 ·s 𝑒 ) ) ) ) ) )
88 87 3 5 mulsproplem11 ( 𝜑 → ( 𝐷 ·s 𝐹 ) ∈ No )
89 33 uneq2i ( ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ∪ ( ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ∪ ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ) ) = ( ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ∪ ∅ )
90 un0 ( ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ∪ ∅ ) = ( ( bday 𝐷 ) +no ( bday 𝐸 ) )
91 89 90 eqtri ( ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ∪ ( ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ∪ ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ) ) = ( ( bday 𝐷 ) +no ( bday 𝐸 ) )
92 ssun2 ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ⊆ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) )
93 92 38 sstri ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ⊆ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) )
94 93 40 sstri ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ⊆ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) )
95 91 94 eqsstri ( ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ∪ ( ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ∪ ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ) ) ⊆ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) )
96 95 sseli ( ( ( ( bday 𝑎 ) +no ( bday 𝑏 ) ) ∪ ( ( ( ( bday 𝑐 ) +no ( bday 𝑒 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑓 ) ) ) ∪ ( ( ( bday 𝑐 ) +no ( bday 𝑓 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑒 ) ) ) ) ) ∈ ( ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ∪ ( ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ∪ ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ) ) → ( ( ( bday 𝑎 ) +no ( bday 𝑏 ) ) ∪ ( ( ( ( bday 𝑐 ) +no ( bday 𝑒 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑓 ) ) ) ∪ ( ( ( bday 𝑐 ) +no ( bday 𝑓 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑒 ) ) ) ) ) ∈ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ) )
97 96 imim1i ( ( ( ( ( bday 𝑎 ) +no ( bday 𝑏 ) ) ∪ ( ( ( ( bday 𝑐 ) +no ( bday 𝑒 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑓 ) ) ) ∪ ( ( ( bday 𝑐 ) +no ( bday 𝑓 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑒 ) ) ) ) ) ∈ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ) → ( ( 𝑎 ·s 𝑏 ) ∈ No ∧ ( ( 𝑐 <s 𝑑𝑒 <s 𝑓 ) → ( ( 𝑐 ·s 𝑓 ) -s ( 𝑐 ·s 𝑒 ) ) <s ( ( 𝑑 ·s 𝑓 ) -s ( 𝑑 ·s 𝑒 ) ) ) ) ) → ( ( ( ( bday 𝑎 ) +no ( bday 𝑏 ) ) ∪ ( ( ( ( bday 𝑐 ) +no ( bday 𝑒 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑓 ) ) ) ∪ ( ( ( bday 𝑐 ) +no ( bday 𝑓 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑒 ) ) ) ) ) ∈ ( ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ∪ ( ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ∪ ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ) ) → ( ( 𝑎 ·s 𝑏 ) ∈ No ∧ ( ( 𝑐 <s 𝑑𝑒 <s 𝑓 ) → ( ( 𝑐 ·s 𝑓 ) -s ( 𝑐 ·s 𝑒 ) ) <s ( ( 𝑑 ·s 𝑓 ) -s ( 𝑑 ·s 𝑒 ) ) ) ) ) )
98 97 6ralimi ( ∀ 𝑎 No 𝑏 No 𝑐 No 𝑑 No 𝑒 No 𝑓 No ( ( ( ( bday 𝑎 ) +no ( bday 𝑏 ) ) ∪ ( ( ( ( bday 𝑐 ) +no ( bday 𝑒 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑓 ) ) ) ∪ ( ( ( bday 𝑐 ) +no ( bday 𝑓 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑒 ) ) ) ) ) ∈ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ) → ( ( 𝑎 ·s 𝑏 ) ∈ No ∧ ( ( 𝑐 <s 𝑑𝑒 <s 𝑓 ) → ( ( 𝑐 ·s 𝑓 ) -s ( 𝑐 ·s 𝑒 ) ) <s ( ( 𝑑 ·s 𝑓 ) -s ( 𝑑 ·s 𝑒 ) ) ) ) ) → ∀ 𝑎 No 𝑏 No 𝑐 No 𝑑 No 𝑒 No 𝑓 No ( ( ( ( bday 𝑎 ) +no ( bday 𝑏 ) ) ∪ ( ( ( ( bday 𝑐 ) +no ( bday 𝑒 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑓 ) ) ) ∪ ( ( ( bday 𝑐 ) +no ( bday 𝑓 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑒 ) ) ) ) ) ∈ ( ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ∪ ( ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ∪ ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ) ) → ( ( 𝑎 ·s 𝑏 ) ∈ No ∧ ( ( 𝑐 <s 𝑑𝑒 <s 𝑓 ) → ( ( 𝑐 ·s 𝑓 ) -s ( 𝑐 ·s 𝑒 ) ) <s ( ( 𝑑 ·s 𝑓 ) -s ( 𝑑 ·s 𝑒 ) ) ) ) ) )
99 1 98 syl ( 𝜑 → ∀ 𝑎 No 𝑏 No 𝑐 No 𝑑 No 𝑒 No 𝑓 No ( ( ( ( bday 𝑎 ) +no ( bday 𝑏 ) ) ∪ ( ( ( ( bday 𝑐 ) +no ( bday 𝑒 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑓 ) ) ) ∪ ( ( ( bday 𝑐 ) +no ( bday 𝑓 ) ) ∪ ( ( bday 𝑑 ) +no ( bday 𝑒 ) ) ) ) ) ∈ ( ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ∪ ( ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ∪ ( ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ∪ ( ( bday ‘ 0s ) +no ( bday ‘ 0s ) ) ) ) ) → ( ( 𝑎 ·s 𝑏 ) ∈ No ∧ ( ( 𝑐 <s 𝑑𝑒 <s 𝑓 ) → ( ( 𝑐 ·s 𝑓 ) -s ( 𝑐 ·s 𝑒 ) ) <s ( ( 𝑑 ·s 𝑓 ) -s ( 𝑑 ·s 𝑒 ) ) ) ) ) )
100 99 3 4 mulsproplem11 ( 𝜑 → ( 𝐷 ·s 𝐸 ) ∈ No )
101 88 100 subscld ( 𝜑 → ( ( 𝐷 ·s 𝐹 ) -s ( 𝐷 ·s 𝐸 ) ) ∈ No )
102 101 adantr ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( ( 𝐷 ·s 𝐹 ) -s ( 𝐷 ·s 𝐸 ) ) ∈ No )
103 1 mulsproplemcbv ( 𝜑 → ∀ 𝑔 No No 𝑖 No 𝑗 No 𝑘 No 𝑙 No ( ( ( ( bday 𝑔 ) +no ( bday ) ) ∪ ( ( ( ( bday 𝑖 ) +no ( bday 𝑘 ) ) ∪ ( ( bday 𝑗 ) +no ( bday 𝑙 ) ) ) ∪ ( ( ( bday 𝑖 ) +no ( bday 𝑙 ) ) ∪ ( ( bday 𝑗 ) +no ( bday 𝑘 ) ) ) ) ) ∈ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ) → ( ( 𝑔 ·s ) ∈ No ∧ ( ( 𝑖 <s 𝑗𝑘 <s 𝑙 ) → ( ( 𝑖 ·s 𝑙 ) -s ( 𝑖 ·s 𝑘 ) ) <s ( ( 𝑗 ·s 𝑙 ) -s ( 𝑗 ·s 𝑘 ) ) ) ) ) )
104 103 adantr ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ∀ 𝑔 No No 𝑖 No 𝑗 No 𝑘 No 𝑙 No ( ( ( ( bday 𝑔 ) +no ( bday ) ) ∪ ( ( ( ( bday 𝑖 ) +no ( bday 𝑘 ) ) ∪ ( ( bday 𝑗 ) +no ( bday 𝑙 ) ) ) ∪ ( ( ( bday 𝑖 ) +no ( bday 𝑙 ) ) ∪ ( ( bday 𝑗 ) +no ( bday 𝑘 ) ) ) ) ) ∈ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ) → ( ( 𝑔 ·s ) ∈ No ∧ ( ( 𝑖 <s 𝑗𝑘 <s 𝑙 ) → ( ( 𝑖 ·s 𝑙 ) -s ( 𝑖 ·s 𝑘 ) ) <s ( ( 𝑗 ·s 𝑙 ) -s ( 𝑗 ·s 𝑘 ) ) ) ) ) )
105 onelss ( ( bday 𝐶 ) ∈ On → ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) → ( bday 𝑥 ) ⊆ ( bday 𝐶 ) ) )
106 66 65 105 mpsyl ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( bday 𝑥 ) ⊆ ( bday 𝐶 ) )
107 simprl ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( bday 𝐶 ) = ( bday 𝐷 ) )
108 106 107 sseqtrd ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( bday 𝑥 ) ⊆ ( bday 𝐷 ) )
109 bdayelon ( bday 𝑥 ) ∈ On
110 bdayelon ( bday 𝐷 ) ∈ On
111 bdayelon ( bday 𝐹 ) ∈ On
112 naddss1 ( ( ( bday 𝑥 ) ∈ On ∧ ( bday 𝐷 ) ∈ On ∧ ( bday 𝐹 ) ∈ On ) → ( ( bday 𝑥 ) ⊆ ( bday 𝐷 ) ↔ ( ( bday 𝑥 ) +no ( bday 𝐹 ) ) ⊆ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) )
113 109 110 111 112 mp3an ( ( bday 𝑥 ) ⊆ ( bday 𝐷 ) ↔ ( ( bday 𝑥 ) +no ( bday 𝐹 ) ) ⊆ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) )
114 108 113 sylib ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( ( bday 𝑥 ) +no ( bday 𝐹 ) ) ⊆ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) )
115 unss2 ( ( ( bday 𝑥 ) +no ( bday 𝐹 ) ) ⊆ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) → ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝑥 ) +no ( bday 𝐹 ) ) ) ⊆ ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) )
116 114 115 syl ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝑥 ) +no ( bday 𝐹 ) ) ) ⊆ ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) )
117 bdayelon ( bday 𝐸 ) ∈ On
118 naddss1 ( ( ( bday 𝑥 ) ∈ On ∧ ( bday 𝐷 ) ∈ On ∧ ( bday 𝐸 ) ∈ On ) → ( ( bday 𝑥 ) ⊆ ( bday 𝐷 ) ↔ ( ( bday 𝑥 ) +no ( bday 𝐸 ) ) ⊆ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) )
119 109 110 117 118 mp3an ( ( bday 𝑥 ) ⊆ ( bday 𝐷 ) ↔ ( ( bday 𝑥 ) +no ( bday 𝐸 ) ) ⊆ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) )
120 108 119 sylib ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( ( bday 𝑥 ) +no ( bday 𝐸 ) ) ⊆ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) )
121 unss2 ( ( ( bday 𝑥 ) +no ( bday 𝐸 ) ) ⊆ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) → ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝑥 ) +no ( bday 𝐸 ) ) ) ⊆ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) )
122 120 121 syl ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝑥 ) +no ( bday 𝐸 ) ) ) ⊆ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) )
123 unss12 ( ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝑥 ) +no ( bday 𝐹 ) ) ) ⊆ ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∧ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝑥 ) +no ( bday 𝐸 ) ) ) ⊆ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) → ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝑥 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝑥 ) +no ( bday 𝐸 ) ) ) ) ⊆ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) )
124 116 122 123 syl2anc ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝑥 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝑥 ) +no ( bday 𝐸 ) ) ) ) ⊆ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) )
125 unss2 ( ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝑥 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝑥 ) +no ( bday 𝐸 ) ) ) ) ⊆ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) → ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝑥 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝑥 ) +no ( bday 𝐸 ) ) ) ) ) ⊆ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ) )
126 124 125 syl ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝑥 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝑥 ) +no ( bday 𝐸 ) ) ) ) ) ⊆ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ) )
127 126 sseld ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( ( ( ( bday 𝑔 ) +no ( bday ) ) ∪ ( ( ( ( bday 𝑖 ) +no ( bday 𝑘 ) ) ∪ ( ( bday 𝑗 ) +no ( bday 𝑙 ) ) ) ∪ ( ( ( bday 𝑖 ) +no ( bday 𝑙 ) ) ∪ ( ( bday 𝑗 ) +no ( bday 𝑘 ) ) ) ) ) ∈ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝑥 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝑥 ) +no ( bday 𝐸 ) ) ) ) ) → ( ( ( bday 𝑔 ) +no ( bday ) ) ∪ ( ( ( ( bday 𝑖 ) +no ( bday 𝑘 ) ) ∪ ( ( bday 𝑗 ) +no ( bday 𝑙 ) ) ) ∪ ( ( ( bday 𝑖 ) +no ( bday 𝑙 ) ) ∪ ( ( bday 𝑗 ) +no ( bday 𝑘 ) ) ) ) ) ∈ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ) ) )
128 127 imim1d ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( ( ( ( ( bday 𝑔 ) +no ( bday ) ) ∪ ( ( ( ( bday 𝑖 ) +no ( bday 𝑘 ) ) ∪ ( ( bday 𝑗 ) +no ( bday 𝑙 ) ) ) ∪ ( ( ( bday 𝑖 ) +no ( bday 𝑙 ) ) ∪ ( ( bday 𝑗 ) +no ( bday 𝑘 ) ) ) ) ) ∈ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ) → ( ( 𝑔 ·s ) ∈ No ∧ ( ( 𝑖 <s 𝑗𝑘 <s 𝑙 ) → ( ( 𝑖 ·s 𝑙 ) -s ( 𝑖 ·s 𝑘 ) ) <s ( ( 𝑗 ·s 𝑙 ) -s ( 𝑗 ·s 𝑘 ) ) ) ) ) → ( ( ( ( bday 𝑔 ) +no ( bday ) ) ∪ ( ( ( ( bday 𝑖 ) +no ( bday 𝑘 ) ) ∪ ( ( bday 𝑗 ) +no ( bday 𝑙 ) ) ) ∪ ( ( ( bday 𝑖 ) +no ( bday 𝑙 ) ) ∪ ( ( bday 𝑗 ) +no ( bday 𝑘 ) ) ) ) ) ∈ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝑥 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝑥 ) +no ( bday 𝐸 ) ) ) ) ) → ( ( 𝑔 ·s ) ∈ No ∧ ( ( 𝑖 <s 𝑗𝑘 <s 𝑙 ) → ( ( 𝑖 ·s 𝑙 ) -s ( 𝑖 ·s 𝑘 ) ) <s ( ( 𝑗 ·s 𝑙 ) -s ( 𝑗 ·s 𝑘 ) ) ) ) ) ) )
129 128 ralimd6v ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( ∀ 𝑔 No No 𝑖 No 𝑗 No 𝑘 No 𝑙 No ( ( ( ( bday 𝑔 ) +no ( bday ) ) ∪ ( ( ( ( bday 𝑖 ) +no ( bday 𝑘 ) ) ∪ ( ( bday 𝑗 ) +no ( bday 𝑙 ) ) ) ∪ ( ( ( bday 𝑖 ) +no ( bday 𝑙 ) ) ∪ ( ( bday 𝑗 ) +no ( bday 𝑘 ) ) ) ) ) ∈ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ) → ( ( 𝑔 ·s ) ∈ No ∧ ( ( 𝑖 <s 𝑗𝑘 <s 𝑙 ) → ( ( 𝑖 ·s 𝑙 ) -s ( 𝑖 ·s 𝑘 ) ) <s ( ( 𝑗 ·s 𝑙 ) -s ( 𝑗 ·s 𝑘 ) ) ) ) ) → ∀ 𝑔 No No 𝑖 No 𝑗 No 𝑘 No 𝑙 No ( ( ( ( bday 𝑔 ) +no ( bday ) ) ∪ ( ( ( ( bday 𝑖 ) +no ( bday 𝑘 ) ) ∪ ( ( bday 𝑗 ) +no ( bday 𝑙 ) ) ) ∪ ( ( ( bday 𝑖 ) +no ( bday 𝑙 ) ) ∪ ( ( bday 𝑗 ) +no ( bday 𝑘 ) ) ) ) ) ∈ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝑥 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝑥 ) +no ( bday 𝐸 ) ) ) ) ) → ( ( 𝑔 ·s ) ∈ No ∧ ( ( 𝑖 <s 𝑗𝑘 <s 𝑙 ) → ( ( 𝑖 ·s 𝑙 ) -s ( 𝑖 ·s 𝑘 ) ) <s ( ( 𝑗 ·s 𝑙 ) -s ( 𝑗 ·s 𝑘 ) ) ) ) ) ) )
130 104 129 mpd ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ∀ 𝑔 No No 𝑖 No 𝑗 No 𝑘 No 𝑙 No ( ( ( ( bday 𝑔 ) +no ( bday ) ) ∪ ( ( ( ( bday 𝑖 ) +no ( bday 𝑘 ) ) ∪ ( ( bday 𝑗 ) +no ( bday 𝑙 ) ) ) ∪ ( ( ( bday 𝑖 ) +no ( bday 𝑙 ) ) ∪ ( ( bday 𝑗 ) +no ( bday 𝑘 ) ) ) ) ) ∈ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝑥 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝑥 ) +no ( bday 𝐸 ) ) ) ) ) → ( ( 𝑔 ·s ) ∈ No ∧ ( ( 𝑖 <s 𝑗𝑘 <s 𝑙 ) → ( ( 𝑖 ·s 𝑙 ) -s ( 𝑖 ·s 𝑘 ) ) <s ( ( 𝑗 ·s 𝑙 ) -s ( 𝑗 ·s 𝑘 ) ) ) ) ) )
131 2 adantr ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → 𝐶 No )
132 simprr2 ( ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) → 𝐶 <s 𝑥 )
133 132 adantl ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → 𝐶 <s 𝑥 )
134 7 adantr ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → 𝐸 <s 𝐹 )
135 65 olcd ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( ( bday 𝐶 ) ∈ ( bday 𝑥 ) ∨ ( bday 𝑥 ) ∈ ( bday 𝐶 ) ) )
136 8 adantr ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( ( bday 𝐸 ) ∈ ( bday 𝐹 ) ∨ ( bday 𝐹 ) ∈ ( bday 𝐸 ) ) )
137 130 131 67 74 71 133 134 135 136 mulsproplem12 ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( ( 𝐶 ·s 𝐹 ) -s ( 𝐶 ·s 𝐸 ) ) <s ( ( 𝑥 ·s 𝐹 ) -s ( 𝑥 ·s 𝐸 ) ) )
138 naddss1 ( ( ( bday 𝑥 ) ∈ On ∧ ( bday 𝐶 ) ∈ On ∧ ( bday 𝐸 ) ∈ On ) → ( ( bday 𝑥 ) ⊆ ( bday 𝐶 ) ↔ ( ( bday 𝑥 ) +no ( bday 𝐸 ) ) ⊆ ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ) )
139 109 66 117 138 mp3an ( ( bday 𝑥 ) ⊆ ( bday 𝐶 ) ↔ ( ( bday 𝑥 ) +no ( bday 𝐸 ) ) ⊆ ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) )
140 106 139 sylib ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( ( bday 𝑥 ) +no ( bday 𝐸 ) ) ⊆ ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) )
141 unss1 ( ( ( bday 𝑥 ) +no ( bday 𝐸 ) ) ⊆ ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) → ( ( ( bday 𝑥 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ⊆ ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) )
142 140 141 syl ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( ( ( bday 𝑥 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ⊆ ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) )
143 naddss1 ( ( ( bday 𝑥 ) ∈ On ∧ ( bday 𝐶 ) ∈ On ∧ ( bday 𝐹 ) ∈ On ) → ( ( bday 𝑥 ) ⊆ ( bday 𝐶 ) ↔ ( ( bday 𝑥 ) +no ( bday 𝐹 ) ) ⊆ ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ) )
144 109 66 111 143 mp3an ( ( bday 𝑥 ) ⊆ ( bday 𝐶 ) ↔ ( ( bday 𝑥 ) +no ( bday 𝐹 ) ) ⊆ ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) )
145 106 144 sylib ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( ( bday 𝑥 ) +no ( bday 𝐹 ) ) ⊆ ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) )
146 unss1 ( ( ( bday 𝑥 ) +no ( bday 𝐹 ) ) ⊆ ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) → ( ( ( bday 𝑥 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ⊆ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) )
147 145 146 syl ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( ( ( bday 𝑥 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ⊆ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) )
148 unss12 ( ( ( ( ( bday 𝑥 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ⊆ ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∧ ( ( ( bday 𝑥 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ⊆ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) → ( ( ( ( bday 𝑥 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝑥 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ⊆ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) )
149 142 147 148 syl2anc ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( ( ( ( bday 𝑥 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝑥 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ⊆ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) )
150 unss2 ( ( ( ( ( bday 𝑥 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝑥 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ⊆ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) → ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝑥 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝑥 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ) ⊆ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ) )
151 149 150 syl ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝑥 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝑥 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ) ⊆ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ) )
152 151 sseld ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( ( ( ( bday 𝑔 ) +no ( bday ) ) ∪ ( ( ( ( bday 𝑖 ) +no ( bday 𝑘 ) ) ∪ ( ( bday 𝑗 ) +no ( bday 𝑙 ) ) ) ∪ ( ( ( bday 𝑖 ) +no ( bday 𝑙 ) ) ∪ ( ( bday 𝑗 ) +no ( bday 𝑘 ) ) ) ) ) ∈ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝑥 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝑥 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ) → ( ( ( bday 𝑔 ) +no ( bday ) ) ∪ ( ( ( ( bday 𝑖 ) +no ( bday 𝑘 ) ) ∪ ( ( bday 𝑗 ) +no ( bday 𝑙 ) ) ) ∪ ( ( ( bday 𝑖 ) +no ( bday 𝑙 ) ) ∪ ( ( bday 𝑗 ) +no ( bday 𝑘 ) ) ) ) ) ∈ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ) ) )
153 152 imim1d ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( ( ( ( ( bday 𝑔 ) +no ( bday ) ) ∪ ( ( ( ( bday 𝑖 ) +no ( bday 𝑘 ) ) ∪ ( ( bday 𝑗 ) +no ( bday 𝑙 ) ) ) ∪ ( ( ( bday 𝑖 ) +no ( bday 𝑙 ) ) ∪ ( ( bday 𝑗 ) +no ( bday 𝑘 ) ) ) ) ) ∈ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ) → ( ( 𝑔 ·s ) ∈ No ∧ ( ( 𝑖 <s 𝑗𝑘 <s 𝑙 ) → ( ( 𝑖 ·s 𝑙 ) -s ( 𝑖 ·s 𝑘 ) ) <s ( ( 𝑗 ·s 𝑙 ) -s ( 𝑗 ·s 𝑘 ) ) ) ) ) → ( ( ( ( bday 𝑔 ) +no ( bday ) ) ∪ ( ( ( ( bday 𝑖 ) +no ( bday 𝑘 ) ) ∪ ( ( bday 𝑗 ) +no ( bday 𝑙 ) ) ) ∪ ( ( ( bday 𝑖 ) +no ( bday 𝑙 ) ) ∪ ( ( bday 𝑗 ) +no ( bday 𝑘 ) ) ) ) ) ∈ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝑥 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝑥 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ) → ( ( 𝑔 ·s ) ∈ No ∧ ( ( 𝑖 <s 𝑗𝑘 <s 𝑙 ) → ( ( 𝑖 ·s 𝑙 ) -s ( 𝑖 ·s 𝑘 ) ) <s ( ( 𝑗 ·s 𝑙 ) -s ( 𝑗 ·s 𝑘 ) ) ) ) ) ) )
154 153 ralimd6v ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( ∀ 𝑔 No No 𝑖 No 𝑗 No 𝑘 No 𝑙 No ( ( ( ( bday 𝑔 ) +no ( bday ) ) ∪ ( ( ( ( bday 𝑖 ) +no ( bday 𝑘 ) ) ∪ ( ( bday 𝑗 ) +no ( bday 𝑙 ) ) ) ∪ ( ( ( bday 𝑖 ) +no ( bday 𝑙 ) ) ∪ ( ( bday 𝑗 ) +no ( bday 𝑘 ) ) ) ) ) ∈ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝐶 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝐶 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ) → ( ( 𝑔 ·s ) ∈ No ∧ ( ( 𝑖 <s 𝑗𝑘 <s 𝑙 ) → ( ( 𝑖 ·s 𝑙 ) -s ( 𝑖 ·s 𝑘 ) ) <s ( ( 𝑗 ·s 𝑙 ) -s ( 𝑗 ·s 𝑘 ) ) ) ) ) → ∀ 𝑔 No No 𝑖 No 𝑗 No 𝑘 No 𝑙 No ( ( ( ( bday 𝑔 ) +no ( bday ) ) ∪ ( ( ( ( bday 𝑖 ) +no ( bday 𝑘 ) ) ∪ ( ( bday 𝑗 ) +no ( bday 𝑙 ) ) ) ∪ ( ( ( bday 𝑖 ) +no ( bday 𝑙 ) ) ∪ ( ( bday 𝑗 ) +no ( bday 𝑘 ) ) ) ) ) ∈ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝑥 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝑥 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ) → ( ( 𝑔 ·s ) ∈ No ∧ ( ( 𝑖 <s 𝑗𝑘 <s 𝑙 ) → ( ( 𝑖 ·s 𝑙 ) -s ( 𝑖 ·s 𝑘 ) ) <s ( ( 𝑗 ·s 𝑙 ) -s ( 𝑗 ·s 𝑘 ) ) ) ) ) ) )
155 104 154 mpd ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ∀ 𝑔 No No 𝑖 No 𝑗 No 𝑘 No 𝑙 No ( ( ( ( bday 𝑔 ) +no ( bday ) ) ∪ ( ( ( ( bday 𝑖 ) +no ( bday 𝑘 ) ) ∪ ( ( bday 𝑗 ) +no ( bday 𝑙 ) ) ) ∪ ( ( ( bday 𝑖 ) +no ( bday 𝑙 ) ) ∪ ( ( bday 𝑗 ) +no ( bday 𝑘 ) ) ) ) ) ∈ ( ( ( bday 𝐴 ) +no ( bday 𝐵 ) ) ∪ ( ( ( ( bday 𝑥 ) +no ( bday 𝐸 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐹 ) ) ) ∪ ( ( ( bday 𝑥 ) +no ( bday 𝐹 ) ) ∪ ( ( bday 𝐷 ) +no ( bday 𝐸 ) ) ) ) ) → ( ( 𝑔 ·s ) ∈ No ∧ ( ( 𝑖 <s 𝑗𝑘 <s 𝑙 ) → ( ( 𝑖 ·s 𝑙 ) -s ( 𝑖 ·s 𝑘 ) ) <s ( ( 𝑗 ·s 𝑙 ) -s ( 𝑗 ·s 𝑘 ) ) ) ) ) )
156 3 adantr ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → 𝐷 No )
157 simprr3 ( ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) → 𝑥 <s 𝐷 )
158 157 adantl ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → 𝑥 <s 𝐷 )
159 65 107 eleqtrd ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( bday 𝑥 ) ∈ ( bday 𝐷 ) )
160 159 orcd ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( ( bday 𝑥 ) ∈ ( bday 𝐷 ) ∨ ( bday 𝐷 ) ∈ ( bday 𝑥 ) ) )
161 155 67 156 74 71 158 134 160 136 mulsproplem12 ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( ( 𝑥 ·s 𝐹 ) -s ( 𝑥 ·s 𝐸 ) ) <s ( ( 𝐷 ·s 𝐹 ) -s ( 𝐷 ·s 𝐸 ) ) )
162 62 76 102 137 161 slttrd ( ( 𝜑 ∧ ( ( bday 𝐶 ) = ( bday 𝐷 ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) ) → ( ( 𝐶 ·s 𝐹 ) -s ( 𝐶 ·s 𝐸 ) ) <s ( ( 𝐷 ·s 𝐹 ) -s ( 𝐷 ·s 𝐸 ) ) )
163 162 anassrs ( ( ( 𝜑 ∧ ( bday 𝐶 ) = ( bday 𝐷 ) ) ∧ ( 𝑥 No ∧ ( ( bday 𝑥 ) ∈ ( bday 𝐶 ) ∧ 𝐶 <s 𝑥𝑥 <s 𝐷 ) ) ) → ( ( 𝐶 ·s 𝐹 ) -s ( 𝐶 ·s 𝐸 ) ) <s ( ( 𝐷 ·s 𝐹 ) -s ( 𝐷 ·s 𝐸 ) ) )
164 24 163 rexlimddv ( ( 𝜑 ∧ ( bday 𝐶 ) = ( bday 𝐷 ) ) → ( ( 𝐶 ·s 𝐹 ) -s ( 𝐶 ·s 𝐸 ) ) <s ( ( 𝐷 ·s 𝐹 ) -s ( 𝐷 ·s 𝐸 ) ) )
165 66 onordi Ord ( bday 𝐶 )
166 110 onordi Ord ( bday 𝐷 )
167 ordtri3or ( ( Ord ( bday 𝐶 ) ∧ Ord ( bday 𝐷 ) ) → ( ( bday 𝐶 ) ∈ ( bday 𝐷 ) ∨ ( bday 𝐶 ) = ( bday 𝐷 ) ∨ ( bday 𝐷 ) ∈ ( bday 𝐶 ) ) )
168 165 166 167 mp2an ( ( bday 𝐶 ) ∈ ( bday 𝐷 ) ∨ ( bday 𝐶 ) = ( bday 𝐷 ) ∨ ( bday 𝐷 ) ∈ ( bday 𝐶 ) )
169 df-3or ( ( ( bday 𝐶 ) ∈ ( bday 𝐷 ) ∨ ( bday 𝐶 ) = ( bday 𝐷 ) ∨ ( bday 𝐷 ) ∈ ( bday 𝐶 ) ) ↔ ( ( ( bday 𝐶 ) ∈ ( bday 𝐷 ) ∨ ( bday 𝐶 ) = ( bday 𝐷 ) ) ∨ ( bday 𝐷 ) ∈ ( bday 𝐶 ) ) )
170 or32 ( ( ( ( bday 𝐶 ) ∈ ( bday 𝐷 ) ∨ ( bday 𝐶 ) = ( bday 𝐷 ) ) ∨ ( bday 𝐷 ) ∈ ( bday 𝐶 ) ) ↔ ( ( ( bday 𝐶 ) ∈ ( bday 𝐷 ) ∨ ( bday 𝐷 ) ∈ ( bday 𝐶 ) ) ∨ ( bday 𝐶 ) = ( bday 𝐷 ) ) )
171 169 170 bitri ( ( ( bday 𝐶 ) ∈ ( bday 𝐷 ) ∨ ( bday 𝐶 ) = ( bday 𝐷 ) ∨ ( bday 𝐷 ) ∈ ( bday 𝐶 ) ) ↔ ( ( ( bday 𝐶 ) ∈ ( bday 𝐷 ) ∨ ( bday 𝐷 ) ∈ ( bday 𝐶 ) ) ∨ ( bday 𝐶 ) = ( bday 𝐷 ) ) )
172 168 171 mpbi ( ( ( bday 𝐶 ) ∈ ( bday 𝐷 ) ∨ ( bday 𝐷 ) ∈ ( bday 𝐶 ) ) ∨ ( bday 𝐶 ) = ( bday 𝐷 ) )
173 172 a1i ( 𝜑 → ( ( ( bday 𝐶 ) ∈ ( bday 𝐷 ) ∨ ( bday 𝐷 ) ∈ ( bday 𝐶 ) ) ∨ ( bday 𝐶 ) = ( bday 𝐷 ) ) )
174 18 164 173 mpjaodan ( 𝜑 → ( ( 𝐶 ·s 𝐹 ) -s ( 𝐶 ·s 𝐸 ) ) <s ( ( 𝐷 ·s 𝐹 ) -s ( 𝐷 ·s 𝐸 ) ) )