Step |
Hyp |
Ref |
Expression |
1 |
|
hashbc.1 |
⊢ ( 𝜑 → 𝐴 ∈ Fin ) |
2 |
|
hashbc.2 |
⊢ ( 𝜑 → ¬ 𝑧 ∈ 𝐴 ) |
3 |
|
hashbc.3 |
⊢ ( 𝜑 → ∀ 𝑗 ∈ ℤ ( ( ♯ ‘ 𝐴 ) C 𝑗 ) = ( ♯ ‘ { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = 𝑗 } ) ) |
4 |
|
hashbc.4 |
⊢ ( 𝜑 → 𝐾 ∈ ℤ ) |
5 |
|
oveq2 |
⊢ ( 𝑗 = 𝐾 → ( ( ♯ ‘ 𝐴 ) C 𝑗 ) = ( ( ♯ ‘ 𝐴 ) C 𝐾 ) ) |
6 |
|
eqeq2 |
⊢ ( 𝑗 = 𝐾 → ( ( ♯ ‘ 𝑥 ) = 𝑗 ↔ ( ♯ ‘ 𝑥 ) = 𝐾 ) ) |
7 |
6
|
rabbidv |
⊢ ( 𝑗 = 𝐾 → { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = 𝑗 } = { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = 𝐾 } ) |
8 |
7
|
fveq2d |
⊢ ( 𝑗 = 𝐾 → ( ♯ ‘ { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = 𝑗 } ) = ( ♯ ‘ { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = 𝐾 } ) ) |
9 |
5 8
|
eqeq12d |
⊢ ( 𝑗 = 𝐾 → ( ( ( ♯ ‘ 𝐴 ) C 𝑗 ) = ( ♯ ‘ { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = 𝑗 } ) ↔ ( ( ♯ ‘ 𝐴 ) C 𝐾 ) = ( ♯ ‘ { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = 𝐾 } ) ) ) |
10 |
9 3 4
|
rspcdva |
⊢ ( 𝜑 → ( ( ♯ ‘ 𝐴 ) C 𝐾 ) = ( ♯ ‘ { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = 𝐾 } ) ) |
11 |
|
ssun1 |
⊢ 𝐴 ⊆ ( 𝐴 ∪ { 𝑧 } ) |
12 |
|
sspwb |
⊢ ( 𝐴 ⊆ ( 𝐴 ∪ { 𝑧 } ) ↔ 𝒫 𝐴 ⊆ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ) |
13 |
11 12
|
mpbi |
⊢ 𝒫 𝐴 ⊆ 𝒫 ( 𝐴 ∪ { 𝑧 } ) |
14 |
13
|
sseli |
⊢ ( 𝑥 ∈ 𝒫 𝐴 → 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ) |
15 |
14
|
adantl |
⊢ ( ( 𝜑 ∧ 𝑥 ∈ 𝒫 𝐴 ) → 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ) |
16 |
|
elpwi |
⊢ ( 𝑥 ∈ 𝒫 𝐴 → 𝑥 ⊆ 𝐴 ) |
17 |
16
|
ssneld |
⊢ ( 𝑥 ∈ 𝒫 𝐴 → ( ¬ 𝑧 ∈ 𝐴 → ¬ 𝑧 ∈ 𝑥 ) ) |
18 |
2 17
|
mpan9 |
⊢ ( ( 𝜑 ∧ 𝑥 ∈ 𝒫 𝐴 ) → ¬ 𝑧 ∈ 𝑥 ) |
19 |
15 18
|
jca |
⊢ ( ( 𝜑 ∧ 𝑥 ∈ 𝒫 𝐴 ) → ( 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ¬ 𝑧 ∈ 𝑥 ) ) |
20 |
|
elpwi |
⊢ ( 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) → 𝑥 ⊆ ( 𝐴 ∪ { 𝑧 } ) ) |
21 |
|
uncom |
⊢ ( 𝐴 ∪ { 𝑧 } ) = ( { 𝑧 } ∪ 𝐴 ) |
22 |
20 21
|
sseqtrdi |
⊢ ( 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) → 𝑥 ⊆ ( { 𝑧 } ∪ 𝐴 ) ) |
23 |
22
|
adantr |
⊢ ( ( 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ¬ 𝑧 ∈ 𝑥 ) → 𝑥 ⊆ ( { 𝑧 } ∪ 𝐴 ) ) |
24 |
|
simpr |
⊢ ( ( 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ¬ 𝑧 ∈ 𝑥 ) → ¬ 𝑧 ∈ 𝑥 ) |
25 |
|
disjsn |
⊢ ( ( 𝑥 ∩ { 𝑧 } ) = ∅ ↔ ¬ 𝑧 ∈ 𝑥 ) |
26 |
24 25
|
sylibr |
⊢ ( ( 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ¬ 𝑧 ∈ 𝑥 ) → ( 𝑥 ∩ { 𝑧 } ) = ∅ ) |
27 |
|
disjssun |
⊢ ( ( 𝑥 ∩ { 𝑧 } ) = ∅ → ( 𝑥 ⊆ ( { 𝑧 } ∪ 𝐴 ) ↔ 𝑥 ⊆ 𝐴 ) ) |
28 |
26 27
|
syl |
⊢ ( ( 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ¬ 𝑧 ∈ 𝑥 ) → ( 𝑥 ⊆ ( { 𝑧 } ∪ 𝐴 ) ↔ 𝑥 ⊆ 𝐴 ) ) |
29 |
23 28
|
mpbid |
⊢ ( ( 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ¬ 𝑧 ∈ 𝑥 ) → 𝑥 ⊆ 𝐴 ) |
30 |
|
vex |
⊢ 𝑥 ∈ V |
31 |
30
|
elpw |
⊢ ( 𝑥 ∈ 𝒫 𝐴 ↔ 𝑥 ⊆ 𝐴 ) |
32 |
29 31
|
sylibr |
⊢ ( ( 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ¬ 𝑧 ∈ 𝑥 ) → 𝑥 ∈ 𝒫 𝐴 ) |
33 |
32
|
adantl |
⊢ ( ( 𝜑 ∧ ( 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ¬ 𝑧 ∈ 𝑥 ) ) → 𝑥 ∈ 𝒫 𝐴 ) |
34 |
19 33
|
impbida |
⊢ ( 𝜑 → ( 𝑥 ∈ 𝒫 𝐴 ↔ ( 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ¬ 𝑧 ∈ 𝑥 ) ) ) |
35 |
34
|
anbi1d |
⊢ ( 𝜑 → ( ( 𝑥 ∈ 𝒫 𝐴 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) ↔ ( ( 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ¬ 𝑧 ∈ 𝑥 ) ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) ) ) |
36 |
|
anass |
⊢ ( ( ( 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ¬ 𝑧 ∈ 𝑥 ) ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) ↔ ( 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) ) ) |
37 |
35 36
|
syl6bb |
⊢ ( 𝜑 → ( ( 𝑥 ∈ 𝒫 𝐴 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) ↔ ( 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) ) ) ) |
38 |
37
|
rabbidva2 |
⊢ ( 𝜑 → { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = 𝐾 } = { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ) |
39 |
38
|
fveq2d |
⊢ ( 𝜑 → ( ♯ ‘ { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = 𝐾 } ) = ( ♯ ‘ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ) ) |
40 |
10 39
|
eqtrd |
⊢ ( 𝜑 → ( ( ♯ ‘ 𝐴 ) C 𝐾 ) = ( ♯ ‘ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ) ) |
41 |
|
oveq2 |
⊢ ( 𝑗 = ( 𝐾 − 1 ) → ( ( ♯ ‘ 𝐴 ) C 𝑗 ) = ( ( ♯ ‘ 𝐴 ) C ( 𝐾 − 1 ) ) ) |
42 |
|
eqeq2 |
⊢ ( 𝑗 = ( 𝐾 − 1 ) → ( ( ♯ ‘ 𝑥 ) = 𝑗 ↔ ( ♯ ‘ 𝑥 ) = ( 𝐾 − 1 ) ) ) |
43 |
42
|
rabbidv |
⊢ ( 𝑗 = ( 𝐾 − 1 ) → { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = 𝑗 } = { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = ( 𝐾 − 1 ) } ) |
44 |
43
|
fveq2d |
⊢ ( 𝑗 = ( 𝐾 − 1 ) → ( ♯ ‘ { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = 𝑗 } ) = ( ♯ ‘ { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = ( 𝐾 − 1 ) } ) ) |
45 |
41 44
|
eqeq12d |
⊢ ( 𝑗 = ( 𝐾 − 1 ) → ( ( ( ♯ ‘ 𝐴 ) C 𝑗 ) = ( ♯ ‘ { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = 𝑗 } ) ↔ ( ( ♯ ‘ 𝐴 ) C ( 𝐾 − 1 ) ) = ( ♯ ‘ { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = ( 𝐾 − 1 ) } ) ) ) |
46 |
|
peano2zm |
⊢ ( 𝐾 ∈ ℤ → ( 𝐾 − 1 ) ∈ ℤ ) |
47 |
4 46
|
syl |
⊢ ( 𝜑 → ( 𝐾 − 1 ) ∈ ℤ ) |
48 |
45 3 47
|
rspcdva |
⊢ ( 𝜑 → ( ( ♯ ‘ 𝐴 ) C ( 𝐾 − 1 ) ) = ( ♯ ‘ { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = ( 𝐾 − 1 ) } ) ) |
49 |
|
pwfi |
⊢ ( 𝐴 ∈ Fin ↔ 𝒫 𝐴 ∈ Fin ) |
50 |
1 49
|
sylib |
⊢ ( 𝜑 → 𝒫 𝐴 ∈ Fin ) |
51 |
|
rabexg |
⊢ ( 𝒫 𝐴 ∈ Fin → { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = ( 𝐾 − 1 ) } ∈ V ) |
52 |
50 51
|
syl |
⊢ ( 𝜑 → { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = ( 𝐾 − 1 ) } ∈ V ) |
53 |
|
snfi |
⊢ { 𝑧 } ∈ Fin |
54 |
|
unfi |
⊢ ( ( 𝐴 ∈ Fin ∧ { 𝑧 } ∈ Fin ) → ( 𝐴 ∪ { 𝑧 } ) ∈ Fin ) |
55 |
1 53 54
|
sylancl |
⊢ ( 𝜑 → ( 𝐴 ∪ { 𝑧 } ) ∈ Fin ) |
56 |
|
pwfi |
⊢ ( ( 𝐴 ∪ { 𝑧 } ) ∈ Fin ↔ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∈ Fin ) |
57 |
55 56
|
sylib |
⊢ ( 𝜑 → 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∈ Fin ) |
58 |
|
ssrab2 |
⊢ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ⊆ 𝒫 ( 𝐴 ∪ { 𝑧 } ) |
59 |
|
ssfi |
⊢ ( ( 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∈ Fin ∧ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ⊆ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ) → { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ∈ Fin ) |
60 |
57 58 59
|
sylancl |
⊢ ( 𝜑 → { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ∈ Fin ) |
61 |
60
|
elexd |
⊢ ( 𝜑 → { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ∈ V ) |
62 |
|
fveqeq2 |
⊢ ( 𝑥 = 𝑢 → ( ( ♯ ‘ 𝑥 ) = ( 𝐾 − 1 ) ↔ ( ♯ ‘ 𝑢 ) = ( 𝐾 − 1 ) ) ) |
63 |
62
|
elrab |
⊢ ( 𝑢 ∈ { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = ( 𝐾 − 1 ) } ↔ ( 𝑢 ∈ 𝒫 𝐴 ∧ ( ♯ ‘ 𝑢 ) = ( 𝐾 − 1 ) ) ) |
64 |
|
eleq2 |
⊢ ( 𝑥 = ( 𝑢 ∪ { 𝑧 } ) → ( 𝑧 ∈ 𝑥 ↔ 𝑧 ∈ ( 𝑢 ∪ { 𝑧 } ) ) ) |
65 |
|
fveqeq2 |
⊢ ( 𝑥 = ( 𝑢 ∪ { 𝑧 } ) → ( ( ♯ ‘ 𝑥 ) = 𝐾 ↔ ( ♯ ‘ ( 𝑢 ∪ { 𝑧 } ) ) = 𝐾 ) ) |
66 |
64 65
|
anbi12d |
⊢ ( 𝑥 = ( 𝑢 ∪ { 𝑧 } ) → ( ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) ↔ ( 𝑧 ∈ ( 𝑢 ∪ { 𝑧 } ) ∧ ( ♯ ‘ ( 𝑢 ∪ { 𝑧 } ) ) = 𝐾 ) ) ) |
67 |
|
elpwi |
⊢ ( 𝑢 ∈ 𝒫 𝐴 → 𝑢 ⊆ 𝐴 ) |
68 |
67
|
ad2antrl |
⊢ ( ( 𝜑 ∧ ( 𝑢 ∈ 𝒫 𝐴 ∧ ( ♯ ‘ 𝑢 ) = ( 𝐾 − 1 ) ) ) → 𝑢 ⊆ 𝐴 ) |
69 |
|
unss1 |
⊢ ( 𝑢 ⊆ 𝐴 → ( 𝑢 ∪ { 𝑧 } ) ⊆ ( 𝐴 ∪ { 𝑧 } ) ) |
70 |
68 69
|
syl |
⊢ ( ( 𝜑 ∧ ( 𝑢 ∈ 𝒫 𝐴 ∧ ( ♯ ‘ 𝑢 ) = ( 𝐾 − 1 ) ) ) → ( 𝑢 ∪ { 𝑧 } ) ⊆ ( 𝐴 ∪ { 𝑧 } ) ) |
71 |
|
vex |
⊢ 𝑢 ∈ V |
72 |
|
snex |
⊢ { 𝑧 } ∈ V |
73 |
71 72
|
unex |
⊢ ( 𝑢 ∪ { 𝑧 } ) ∈ V |
74 |
73
|
elpw |
⊢ ( ( 𝑢 ∪ { 𝑧 } ) ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ↔ ( 𝑢 ∪ { 𝑧 } ) ⊆ ( 𝐴 ∪ { 𝑧 } ) ) |
75 |
70 74
|
sylibr |
⊢ ( ( 𝜑 ∧ ( 𝑢 ∈ 𝒫 𝐴 ∧ ( ♯ ‘ 𝑢 ) = ( 𝐾 − 1 ) ) ) → ( 𝑢 ∪ { 𝑧 } ) ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ) |
76 |
1
|
adantr |
⊢ ( ( 𝜑 ∧ ( 𝑢 ∈ 𝒫 𝐴 ∧ ( ♯ ‘ 𝑢 ) = ( 𝐾 − 1 ) ) ) → 𝐴 ∈ Fin ) |
77 |
76 68
|
ssfid |
⊢ ( ( 𝜑 ∧ ( 𝑢 ∈ 𝒫 𝐴 ∧ ( ♯ ‘ 𝑢 ) = ( 𝐾 − 1 ) ) ) → 𝑢 ∈ Fin ) |
78 |
53
|
a1i |
⊢ ( ( 𝜑 ∧ ( 𝑢 ∈ 𝒫 𝐴 ∧ ( ♯ ‘ 𝑢 ) = ( 𝐾 − 1 ) ) ) → { 𝑧 } ∈ Fin ) |
79 |
2
|
adantr |
⊢ ( ( 𝜑 ∧ ( 𝑢 ∈ 𝒫 𝐴 ∧ ( ♯ ‘ 𝑢 ) = ( 𝐾 − 1 ) ) ) → ¬ 𝑧 ∈ 𝐴 ) |
80 |
68 79
|
ssneldd |
⊢ ( ( 𝜑 ∧ ( 𝑢 ∈ 𝒫 𝐴 ∧ ( ♯ ‘ 𝑢 ) = ( 𝐾 − 1 ) ) ) → ¬ 𝑧 ∈ 𝑢 ) |
81 |
|
disjsn |
⊢ ( ( 𝑢 ∩ { 𝑧 } ) = ∅ ↔ ¬ 𝑧 ∈ 𝑢 ) |
82 |
80 81
|
sylibr |
⊢ ( ( 𝜑 ∧ ( 𝑢 ∈ 𝒫 𝐴 ∧ ( ♯ ‘ 𝑢 ) = ( 𝐾 − 1 ) ) ) → ( 𝑢 ∩ { 𝑧 } ) = ∅ ) |
83 |
|
hashun |
⊢ ( ( 𝑢 ∈ Fin ∧ { 𝑧 } ∈ Fin ∧ ( 𝑢 ∩ { 𝑧 } ) = ∅ ) → ( ♯ ‘ ( 𝑢 ∪ { 𝑧 } ) ) = ( ( ♯ ‘ 𝑢 ) + ( ♯ ‘ { 𝑧 } ) ) ) |
84 |
77 78 82 83
|
syl3anc |
⊢ ( ( 𝜑 ∧ ( 𝑢 ∈ 𝒫 𝐴 ∧ ( ♯ ‘ 𝑢 ) = ( 𝐾 − 1 ) ) ) → ( ♯ ‘ ( 𝑢 ∪ { 𝑧 } ) ) = ( ( ♯ ‘ 𝑢 ) + ( ♯ ‘ { 𝑧 } ) ) ) |
85 |
|
simprr |
⊢ ( ( 𝜑 ∧ ( 𝑢 ∈ 𝒫 𝐴 ∧ ( ♯ ‘ 𝑢 ) = ( 𝐾 − 1 ) ) ) → ( ♯ ‘ 𝑢 ) = ( 𝐾 − 1 ) ) |
86 |
|
hashsng |
⊢ ( 𝑧 ∈ V → ( ♯ ‘ { 𝑧 } ) = 1 ) |
87 |
86
|
elv |
⊢ ( ♯ ‘ { 𝑧 } ) = 1 |
88 |
87
|
a1i |
⊢ ( ( 𝜑 ∧ ( 𝑢 ∈ 𝒫 𝐴 ∧ ( ♯ ‘ 𝑢 ) = ( 𝐾 − 1 ) ) ) → ( ♯ ‘ { 𝑧 } ) = 1 ) |
89 |
85 88
|
oveq12d |
⊢ ( ( 𝜑 ∧ ( 𝑢 ∈ 𝒫 𝐴 ∧ ( ♯ ‘ 𝑢 ) = ( 𝐾 − 1 ) ) ) → ( ( ♯ ‘ 𝑢 ) + ( ♯ ‘ { 𝑧 } ) ) = ( ( 𝐾 − 1 ) + 1 ) ) |
90 |
4
|
adantr |
⊢ ( ( 𝜑 ∧ ( 𝑢 ∈ 𝒫 𝐴 ∧ ( ♯ ‘ 𝑢 ) = ( 𝐾 − 1 ) ) ) → 𝐾 ∈ ℤ ) |
91 |
90
|
zcnd |
⊢ ( ( 𝜑 ∧ ( 𝑢 ∈ 𝒫 𝐴 ∧ ( ♯ ‘ 𝑢 ) = ( 𝐾 − 1 ) ) ) → 𝐾 ∈ ℂ ) |
92 |
|
ax-1cn |
⊢ 1 ∈ ℂ |
93 |
|
npcan |
⊢ ( ( 𝐾 ∈ ℂ ∧ 1 ∈ ℂ ) → ( ( 𝐾 − 1 ) + 1 ) = 𝐾 ) |
94 |
91 92 93
|
sylancl |
⊢ ( ( 𝜑 ∧ ( 𝑢 ∈ 𝒫 𝐴 ∧ ( ♯ ‘ 𝑢 ) = ( 𝐾 − 1 ) ) ) → ( ( 𝐾 − 1 ) + 1 ) = 𝐾 ) |
95 |
84 89 94
|
3eqtrd |
⊢ ( ( 𝜑 ∧ ( 𝑢 ∈ 𝒫 𝐴 ∧ ( ♯ ‘ 𝑢 ) = ( 𝐾 − 1 ) ) ) → ( ♯ ‘ ( 𝑢 ∪ { 𝑧 } ) ) = 𝐾 ) |
96 |
|
ssun2 |
⊢ { 𝑧 } ⊆ ( 𝑢 ∪ { 𝑧 } ) |
97 |
|
vex |
⊢ 𝑧 ∈ V |
98 |
97
|
snss |
⊢ ( 𝑧 ∈ ( 𝑢 ∪ { 𝑧 } ) ↔ { 𝑧 } ⊆ ( 𝑢 ∪ { 𝑧 } ) ) |
99 |
96 98
|
mpbir |
⊢ 𝑧 ∈ ( 𝑢 ∪ { 𝑧 } ) |
100 |
95 99
|
jctil |
⊢ ( ( 𝜑 ∧ ( 𝑢 ∈ 𝒫 𝐴 ∧ ( ♯ ‘ 𝑢 ) = ( 𝐾 − 1 ) ) ) → ( 𝑧 ∈ ( 𝑢 ∪ { 𝑧 } ) ∧ ( ♯ ‘ ( 𝑢 ∪ { 𝑧 } ) ) = 𝐾 ) ) |
101 |
66 75 100
|
elrabd |
⊢ ( ( 𝜑 ∧ ( 𝑢 ∈ 𝒫 𝐴 ∧ ( ♯ ‘ 𝑢 ) = ( 𝐾 − 1 ) ) ) → ( 𝑢 ∪ { 𝑧 } ) ∈ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ) |
102 |
101
|
ex |
⊢ ( 𝜑 → ( ( 𝑢 ∈ 𝒫 𝐴 ∧ ( ♯ ‘ 𝑢 ) = ( 𝐾 − 1 ) ) → ( 𝑢 ∪ { 𝑧 } ) ∈ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ) ) |
103 |
63 102
|
syl5bi |
⊢ ( 𝜑 → ( 𝑢 ∈ { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = ( 𝐾 − 1 ) } → ( 𝑢 ∪ { 𝑧 } ) ∈ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ) ) |
104 |
|
eleq2 |
⊢ ( 𝑥 = 𝑣 → ( 𝑧 ∈ 𝑥 ↔ 𝑧 ∈ 𝑣 ) ) |
105 |
|
fveqeq2 |
⊢ ( 𝑥 = 𝑣 → ( ( ♯ ‘ 𝑥 ) = 𝐾 ↔ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) |
106 |
104 105
|
anbi12d |
⊢ ( 𝑥 = 𝑣 → ( ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) ↔ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) ) |
107 |
106
|
elrab |
⊢ ( 𝑣 ∈ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ↔ ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) ) |
108 |
|
fveqeq2 |
⊢ ( 𝑥 = ( 𝑣 ∖ { 𝑧 } ) → ( ( ♯ ‘ 𝑥 ) = ( 𝐾 − 1 ) ↔ ( ♯ ‘ ( 𝑣 ∖ { 𝑧 } ) ) = ( 𝐾 − 1 ) ) ) |
109 |
|
elpwi |
⊢ ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) → 𝑣 ⊆ ( 𝐴 ∪ { 𝑧 } ) ) |
110 |
109
|
ad2antrl |
⊢ ( ( 𝜑 ∧ ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) ) → 𝑣 ⊆ ( 𝐴 ∪ { 𝑧 } ) ) |
111 |
110 21
|
sseqtrdi |
⊢ ( ( 𝜑 ∧ ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) ) → 𝑣 ⊆ ( { 𝑧 } ∪ 𝐴 ) ) |
112 |
|
ssundif |
⊢ ( 𝑣 ⊆ ( { 𝑧 } ∪ 𝐴 ) ↔ ( 𝑣 ∖ { 𝑧 } ) ⊆ 𝐴 ) |
113 |
111 112
|
sylib |
⊢ ( ( 𝜑 ∧ ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) ) → ( 𝑣 ∖ { 𝑧 } ) ⊆ 𝐴 ) |
114 |
|
vex |
⊢ 𝑣 ∈ V |
115 |
114
|
difexi |
⊢ ( 𝑣 ∖ { 𝑧 } ) ∈ V |
116 |
115
|
elpw |
⊢ ( ( 𝑣 ∖ { 𝑧 } ) ∈ 𝒫 𝐴 ↔ ( 𝑣 ∖ { 𝑧 } ) ⊆ 𝐴 ) |
117 |
113 116
|
sylibr |
⊢ ( ( 𝜑 ∧ ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) ) → ( 𝑣 ∖ { 𝑧 } ) ∈ 𝒫 𝐴 ) |
118 |
1
|
adantr |
⊢ ( ( 𝜑 ∧ ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) ) → 𝐴 ∈ Fin ) |
119 |
118 113
|
ssfid |
⊢ ( ( 𝜑 ∧ ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) ) → ( 𝑣 ∖ { 𝑧 } ) ∈ Fin ) |
120 |
|
hashcl |
⊢ ( ( 𝑣 ∖ { 𝑧 } ) ∈ Fin → ( ♯ ‘ ( 𝑣 ∖ { 𝑧 } ) ) ∈ ℕ0 ) |
121 |
119 120
|
syl |
⊢ ( ( 𝜑 ∧ ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) ) → ( ♯ ‘ ( 𝑣 ∖ { 𝑧 } ) ) ∈ ℕ0 ) |
122 |
121
|
nn0cnd |
⊢ ( ( 𝜑 ∧ ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) ) → ( ♯ ‘ ( 𝑣 ∖ { 𝑧 } ) ) ∈ ℂ ) |
123 |
|
pncan |
⊢ ( ( ( ♯ ‘ ( 𝑣 ∖ { 𝑧 } ) ) ∈ ℂ ∧ 1 ∈ ℂ ) → ( ( ( ♯ ‘ ( 𝑣 ∖ { 𝑧 } ) ) + 1 ) − 1 ) = ( ♯ ‘ ( 𝑣 ∖ { 𝑧 } ) ) ) |
124 |
122 92 123
|
sylancl |
⊢ ( ( 𝜑 ∧ ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) ) → ( ( ( ♯ ‘ ( 𝑣 ∖ { 𝑧 } ) ) + 1 ) − 1 ) = ( ♯ ‘ ( 𝑣 ∖ { 𝑧 } ) ) ) |
125 |
|
undif1 |
⊢ ( ( 𝑣 ∖ { 𝑧 } ) ∪ { 𝑧 } ) = ( 𝑣 ∪ { 𝑧 } ) |
126 |
|
simprrl |
⊢ ( ( 𝜑 ∧ ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) ) → 𝑧 ∈ 𝑣 ) |
127 |
126
|
snssd |
⊢ ( ( 𝜑 ∧ ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) ) → { 𝑧 } ⊆ 𝑣 ) |
128 |
|
ssequn2 |
⊢ ( { 𝑧 } ⊆ 𝑣 ↔ ( 𝑣 ∪ { 𝑧 } ) = 𝑣 ) |
129 |
127 128
|
sylib |
⊢ ( ( 𝜑 ∧ ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) ) → ( 𝑣 ∪ { 𝑧 } ) = 𝑣 ) |
130 |
125 129
|
syl5eq |
⊢ ( ( 𝜑 ∧ ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) ) → ( ( 𝑣 ∖ { 𝑧 } ) ∪ { 𝑧 } ) = 𝑣 ) |
131 |
130
|
fveq2d |
⊢ ( ( 𝜑 ∧ ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) ) → ( ♯ ‘ ( ( 𝑣 ∖ { 𝑧 } ) ∪ { 𝑧 } ) ) = ( ♯ ‘ 𝑣 ) ) |
132 |
53
|
a1i |
⊢ ( ( 𝜑 ∧ ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) ) → { 𝑧 } ∈ Fin ) |
133 |
|
incom |
⊢ ( ( 𝑣 ∖ { 𝑧 } ) ∩ { 𝑧 } ) = ( { 𝑧 } ∩ ( 𝑣 ∖ { 𝑧 } ) ) |
134 |
|
disjdif |
⊢ ( { 𝑧 } ∩ ( 𝑣 ∖ { 𝑧 } ) ) = ∅ |
135 |
133 134
|
eqtri |
⊢ ( ( 𝑣 ∖ { 𝑧 } ) ∩ { 𝑧 } ) = ∅ |
136 |
135
|
a1i |
⊢ ( ( 𝜑 ∧ ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) ) → ( ( 𝑣 ∖ { 𝑧 } ) ∩ { 𝑧 } ) = ∅ ) |
137 |
|
hashun |
⊢ ( ( ( 𝑣 ∖ { 𝑧 } ) ∈ Fin ∧ { 𝑧 } ∈ Fin ∧ ( ( 𝑣 ∖ { 𝑧 } ) ∩ { 𝑧 } ) = ∅ ) → ( ♯ ‘ ( ( 𝑣 ∖ { 𝑧 } ) ∪ { 𝑧 } ) ) = ( ( ♯ ‘ ( 𝑣 ∖ { 𝑧 } ) ) + ( ♯ ‘ { 𝑧 } ) ) ) |
138 |
119 132 136 137
|
syl3anc |
⊢ ( ( 𝜑 ∧ ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) ) → ( ♯ ‘ ( ( 𝑣 ∖ { 𝑧 } ) ∪ { 𝑧 } ) ) = ( ( ♯ ‘ ( 𝑣 ∖ { 𝑧 } ) ) + ( ♯ ‘ { 𝑧 } ) ) ) |
139 |
87
|
oveq2i |
⊢ ( ( ♯ ‘ ( 𝑣 ∖ { 𝑧 } ) ) + ( ♯ ‘ { 𝑧 } ) ) = ( ( ♯ ‘ ( 𝑣 ∖ { 𝑧 } ) ) + 1 ) |
140 |
138 139
|
syl6eq |
⊢ ( ( 𝜑 ∧ ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) ) → ( ♯ ‘ ( ( 𝑣 ∖ { 𝑧 } ) ∪ { 𝑧 } ) ) = ( ( ♯ ‘ ( 𝑣 ∖ { 𝑧 } ) ) + 1 ) ) |
141 |
|
simprrr |
⊢ ( ( 𝜑 ∧ ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) ) → ( ♯ ‘ 𝑣 ) = 𝐾 ) |
142 |
131 140 141
|
3eqtr3d |
⊢ ( ( 𝜑 ∧ ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) ) → ( ( ♯ ‘ ( 𝑣 ∖ { 𝑧 } ) ) + 1 ) = 𝐾 ) |
143 |
142
|
oveq1d |
⊢ ( ( 𝜑 ∧ ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) ) → ( ( ( ♯ ‘ ( 𝑣 ∖ { 𝑧 } ) ) + 1 ) − 1 ) = ( 𝐾 − 1 ) ) |
144 |
124 143
|
eqtr3d |
⊢ ( ( 𝜑 ∧ ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) ) → ( ♯ ‘ ( 𝑣 ∖ { 𝑧 } ) ) = ( 𝐾 − 1 ) ) |
145 |
108 117 144
|
elrabd |
⊢ ( ( 𝜑 ∧ ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) ) → ( 𝑣 ∖ { 𝑧 } ) ∈ { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = ( 𝐾 − 1 ) } ) |
146 |
145
|
ex |
⊢ ( 𝜑 → ( ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) → ( 𝑣 ∖ { 𝑧 } ) ∈ { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = ( 𝐾 − 1 ) } ) ) |
147 |
107 146
|
syl5bi |
⊢ ( 𝜑 → ( 𝑣 ∈ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } → ( 𝑣 ∖ { 𝑧 } ) ∈ { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = ( 𝐾 − 1 ) } ) ) |
148 |
63 107
|
anbi12i |
⊢ ( ( 𝑢 ∈ { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = ( 𝐾 − 1 ) } ∧ 𝑣 ∈ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ) ↔ ( ( 𝑢 ∈ 𝒫 𝐴 ∧ ( ♯ ‘ 𝑢 ) = ( 𝐾 − 1 ) ) ∧ ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) ) ) |
149 |
|
simp3rl |
⊢ ( ( 𝜑 ∧ ( 𝑢 ∈ 𝒫 𝐴 ∧ ( ♯ ‘ 𝑢 ) = ( 𝐾 − 1 ) ) ∧ ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) ) → 𝑧 ∈ 𝑣 ) |
150 |
149
|
snssd |
⊢ ( ( 𝜑 ∧ ( 𝑢 ∈ 𝒫 𝐴 ∧ ( ♯ ‘ 𝑢 ) = ( 𝐾 − 1 ) ) ∧ ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) ) → { 𝑧 } ⊆ 𝑣 ) |
151 |
|
incom |
⊢ ( { 𝑧 } ∩ 𝑢 ) = ( 𝑢 ∩ { 𝑧 } ) |
152 |
82
|
3adant3 |
⊢ ( ( 𝜑 ∧ ( 𝑢 ∈ 𝒫 𝐴 ∧ ( ♯ ‘ 𝑢 ) = ( 𝐾 − 1 ) ) ∧ ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) ) → ( 𝑢 ∩ { 𝑧 } ) = ∅ ) |
153 |
151 152
|
syl5eq |
⊢ ( ( 𝜑 ∧ ( 𝑢 ∈ 𝒫 𝐴 ∧ ( ♯ ‘ 𝑢 ) = ( 𝐾 − 1 ) ) ∧ ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) ) → ( { 𝑧 } ∩ 𝑢 ) = ∅ ) |
154 |
|
uneqdifeq |
⊢ ( ( { 𝑧 } ⊆ 𝑣 ∧ ( { 𝑧 } ∩ 𝑢 ) = ∅ ) → ( ( { 𝑧 } ∪ 𝑢 ) = 𝑣 ↔ ( 𝑣 ∖ { 𝑧 } ) = 𝑢 ) ) |
155 |
150 153 154
|
syl2anc |
⊢ ( ( 𝜑 ∧ ( 𝑢 ∈ 𝒫 𝐴 ∧ ( ♯ ‘ 𝑢 ) = ( 𝐾 − 1 ) ) ∧ ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) ) → ( ( { 𝑧 } ∪ 𝑢 ) = 𝑣 ↔ ( 𝑣 ∖ { 𝑧 } ) = 𝑢 ) ) |
156 |
155
|
bicomd |
⊢ ( ( 𝜑 ∧ ( 𝑢 ∈ 𝒫 𝐴 ∧ ( ♯ ‘ 𝑢 ) = ( 𝐾 − 1 ) ) ∧ ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) ) → ( ( 𝑣 ∖ { 𝑧 } ) = 𝑢 ↔ ( { 𝑧 } ∪ 𝑢 ) = 𝑣 ) ) |
157 |
|
eqcom |
⊢ ( 𝑢 = ( 𝑣 ∖ { 𝑧 } ) ↔ ( 𝑣 ∖ { 𝑧 } ) = 𝑢 ) |
158 |
|
eqcom |
⊢ ( 𝑣 = ( 𝑢 ∪ { 𝑧 } ) ↔ ( 𝑢 ∪ { 𝑧 } ) = 𝑣 ) |
159 |
|
uncom |
⊢ ( 𝑢 ∪ { 𝑧 } ) = ( { 𝑧 } ∪ 𝑢 ) |
160 |
159
|
eqeq1i |
⊢ ( ( 𝑢 ∪ { 𝑧 } ) = 𝑣 ↔ ( { 𝑧 } ∪ 𝑢 ) = 𝑣 ) |
161 |
158 160
|
bitri |
⊢ ( 𝑣 = ( 𝑢 ∪ { 𝑧 } ) ↔ ( { 𝑧 } ∪ 𝑢 ) = 𝑣 ) |
162 |
156 157 161
|
3bitr4g |
⊢ ( ( 𝜑 ∧ ( 𝑢 ∈ 𝒫 𝐴 ∧ ( ♯ ‘ 𝑢 ) = ( 𝐾 − 1 ) ) ∧ ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) ) → ( 𝑢 = ( 𝑣 ∖ { 𝑧 } ) ↔ 𝑣 = ( 𝑢 ∪ { 𝑧 } ) ) ) |
163 |
162
|
3expib |
⊢ ( 𝜑 → ( ( ( 𝑢 ∈ 𝒫 𝐴 ∧ ( ♯ ‘ 𝑢 ) = ( 𝐾 − 1 ) ) ∧ ( 𝑣 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∧ ( 𝑧 ∈ 𝑣 ∧ ( ♯ ‘ 𝑣 ) = 𝐾 ) ) ) → ( 𝑢 = ( 𝑣 ∖ { 𝑧 } ) ↔ 𝑣 = ( 𝑢 ∪ { 𝑧 } ) ) ) ) |
164 |
148 163
|
syl5bi |
⊢ ( 𝜑 → ( ( 𝑢 ∈ { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = ( 𝐾 − 1 ) } ∧ 𝑣 ∈ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ) → ( 𝑢 = ( 𝑣 ∖ { 𝑧 } ) ↔ 𝑣 = ( 𝑢 ∪ { 𝑧 } ) ) ) ) |
165 |
52 61 103 147 164
|
en3d |
⊢ ( 𝜑 → { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = ( 𝐾 − 1 ) } ≈ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ) |
166 |
|
ssrab2 |
⊢ { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = ( 𝐾 − 1 ) } ⊆ 𝒫 𝐴 |
167 |
|
ssfi |
⊢ ( ( 𝒫 𝐴 ∈ Fin ∧ { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = ( 𝐾 − 1 ) } ⊆ 𝒫 𝐴 ) → { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = ( 𝐾 − 1 ) } ∈ Fin ) |
168 |
50 166 167
|
sylancl |
⊢ ( 𝜑 → { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = ( 𝐾 − 1 ) } ∈ Fin ) |
169 |
|
hashen |
⊢ ( ( { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = ( 𝐾 − 1 ) } ∈ Fin ∧ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ∈ Fin ) → ( ( ♯ ‘ { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = ( 𝐾 − 1 ) } ) = ( ♯ ‘ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ) ↔ { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = ( 𝐾 − 1 ) } ≈ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ) ) |
170 |
168 60 169
|
syl2anc |
⊢ ( 𝜑 → ( ( ♯ ‘ { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = ( 𝐾 − 1 ) } ) = ( ♯ ‘ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ) ↔ { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = ( 𝐾 − 1 ) } ≈ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ) ) |
171 |
165 170
|
mpbird |
⊢ ( 𝜑 → ( ♯ ‘ { 𝑥 ∈ 𝒫 𝐴 ∣ ( ♯ ‘ 𝑥 ) = ( 𝐾 − 1 ) } ) = ( ♯ ‘ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ) ) |
172 |
48 171
|
eqtrd |
⊢ ( 𝜑 → ( ( ♯ ‘ 𝐴 ) C ( 𝐾 − 1 ) ) = ( ♯ ‘ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ) ) |
173 |
40 172
|
oveq12d |
⊢ ( 𝜑 → ( ( ( ♯ ‘ 𝐴 ) C 𝐾 ) + ( ( ♯ ‘ 𝐴 ) C ( 𝐾 − 1 ) ) ) = ( ( ♯ ‘ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ) + ( ♯ ‘ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ) ) ) |
174 |
53
|
a1i |
⊢ ( 𝜑 → { 𝑧 } ∈ Fin ) |
175 |
|
disjsn |
⊢ ( ( 𝐴 ∩ { 𝑧 } ) = ∅ ↔ ¬ 𝑧 ∈ 𝐴 ) |
176 |
2 175
|
sylibr |
⊢ ( 𝜑 → ( 𝐴 ∩ { 𝑧 } ) = ∅ ) |
177 |
|
hashun |
⊢ ( ( 𝐴 ∈ Fin ∧ { 𝑧 } ∈ Fin ∧ ( 𝐴 ∩ { 𝑧 } ) = ∅ ) → ( ♯ ‘ ( 𝐴 ∪ { 𝑧 } ) ) = ( ( ♯ ‘ 𝐴 ) + ( ♯ ‘ { 𝑧 } ) ) ) |
178 |
1 174 176 177
|
syl3anc |
⊢ ( 𝜑 → ( ♯ ‘ ( 𝐴 ∪ { 𝑧 } ) ) = ( ( ♯ ‘ 𝐴 ) + ( ♯ ‘ { 𝑧 } ) ) ) |
179 |
87
|
oveq2i |
⊢ ( ( ♯ ‘ 𝐴 ) + ( ♯ ‘ { 𝑧 } ) ) = ( ( ♯ ‘ 𝐴 ) + 1 ) |
180 |
178 179
|
syl6eq |
⊢ ( 𝜑 → ( ♯ ‘ ( 𝐴 ∪ { 𝑧 } ) ) = ( ( ♯ ‘ 𝐴 ) + 1 ) ) |
181 |
180
|
oveq1d |
⊢ ( 𝜑 → ( ( ♯ ‘ ( 𝐴 ∪ { 𝑧 } ) ) C 𝐾 ) = ( ( ( ♯ ‘ 𝐴 ) + 1 ) C 𝐾 ) ) |
182 |
|
hashcl |
⊢ ( 𝐴 ∈ Fin → ( ♯ ‘ 𝐴 ) ∈ ℕ0 ) |
183 |
1 182
|
syl |
⊢ ( 𝜑 → ( ♯ ‘ 𝐴 ) ∈ ℕ0 ) |
184 |
|
bcpasc |
⊢ ( ( ( ♯ ‘ 𝐴 ) ∈ ℕ0 ∧ 𝐾 ∈ ℤ ) → ( ( ( ♯ ‘ 𝐴 ) C 𝐾 ) + ( ( ♯ ‘ 𝐴 ) C ( 𝐾 − 1 ) ) ) = ( ( ( ♯ ‘ 𝐴 ) + 1 ) C 𝐾 ) ) |
185 |
183 4 184
|
syl2anc |
⊢ ( 𝜑 → ( ( ( ♯ ‘ 𝐴 ) C 𝐾 ) + ( ( ♯ ‘ 𝐴 ) C ( 𝐾 − 1 ) ) ) = ( ( ( ♯ ‘ 𝐴 ) + 1 ) C 𝐾 ) ) |
186 |
181 185
|
eqtr4d |
⊢ ( 𝜑 → ( ( ♯ ‘ ( 𝐴 ∪ { 𝑧 } ) ) C 𝐾 ) = ( ( ( ♯ ‘ 𝐴 ) C 𝐾 ) + ( ( ♯ ‘ 𝐴 ) C ( 𝐾 − 1 ) ) ) ) |
187 |
|
pm2.1 |
⊢ ( ¬ 𝑧 ∈ 𝑥 ∨ 𝑧 ∈ 𝑥 ) |
188 |
187
|
biantrur |
⊢ ( ( ♯ ‘ 𝑥 ) = 𝐾 ↔ ( ( ¬ 𝑧 ∈ 𝑥 ∨ 𝑧 ∈ 𝑥 ) ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) ) |
189 |
|
andir |
⊢ ( ( ( ¬ 𝑧 ∈ 𝑥 ∨ 𝑧 ∈ 𝑥 ) ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) ↔ ( ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) ∨ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) ) ) |
190 |
188 189
|
bitri |
⊢ ( ( ♯ ‘ 𝑥 ) = 𝐾 ↔ ( ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) ∨ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) ) ) |
191 |
190
|
rabbii |
⊢ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( ♯ ‘ 𝑥 ) = 𝐾 } = { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) ∨ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) ) } |
192 |
|
unrab |
⊢ ( { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ∪ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ) = { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) ∨ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) ) } |
193 |
191 192
|
eqtr4i |
⊢ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( ♯ ‘ 𝑥 ) = 𝐾 } = ( { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ∪ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ) |
194 |
193
|
fveq2i |
⊢ ( ♯ ‘ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( ♯ ‘ 𝑥 ) = 𝐾 } ) = ( ♯ ‘ ( { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ∪ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ) ) |
195 |
|
ssrab2 |
⊢ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ⊆ 𝒫 ( 𝐴 ∪ { 𝑧 } ) |
196 |
|
ssfi |
⊢ ( ( 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∈ Fin ∧ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ⊆ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ) → { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ∈ Fin ) |
197 |
57 195 196
|
sylancl |
⊢ ( 𝜑 → { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ∈ Fin ) |
198 |
|
inrab |
⊢ ( { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ∩ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ) = { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) ∧ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) ) } |
199 |
|
simprl |
⊢ ( ( ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) ∧ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) ) → 𝑧 ∈ 𝑥 ) |
200 |
|
simpll |
⊢ ( ( ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) ∧ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) ) → ¬ 𝑧 ∈ 𝑥 ) |
201 |
199 200
|
pm2.65i |
⊢ ¬ ( ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) ∧ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) ) |
202 |
201
|
rgenw |
⊢ ∀ 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ¬ ( ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) ∧ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) ) |
203 |
|
rabeq0 |
⊢ ( { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) ∧ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) ) } = ∅ ↔ ∀ 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ¬ ( ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) ∧ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) ) ) |
204 |
202 203
|
mpbir |
⊢ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) ∧ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) ) } = ∅ |
205 |
198 204
|
eqtri |
⊢ ( { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ∩ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ) = ∅ |
206 |
205
|
a1i |
⊢ ( 𝜑 → ( { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ∩ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ) = ∅ ) |
207 |
|
hashun |
⊢ ( ( { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ∈ Fin ∧ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ∈ Fin ∧ ( { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ∩ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ) = ∅ ) → ( ♯ ‘ ( { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ∪ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ) ) = ( ( ♯ ‘ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ) + ( ♯ ‘ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ) ) ) |
208 |
197 60 206 207
|
syl3anc |
⊢ ( 𝜑 → ( ♯ ‘ ( { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ∪ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ) ) = ( ( ♯ ‘ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ) + ( ♯ ‘ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ) ) ) |
209 |
194 208
|
syl5eq |
⊢ ( 𝜑 → ( ♯ ‘ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( ♯ ‘ 𝑥 ) = 𝐾 } ) = ( ( ♯ ‘ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( ¬ 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ) + ( ♯ ‘ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( 𝑧 ∈ 𝑥 ∧ ( ♯ ‘ 𝑥 ) = 𝐾 ) } ) ) ) |
210 |
173 186 209
|
3eqtr4d |
⊢ ( 𝜑 → ( ( ♯ ‘ ( 𝐴 ∪ { 𝑧 } ) ) C 𝐾 ) = ( ♯ ‘ { 𝑥 ∈ 𝒫 ( 𝐴 ∪ { 𝑧 } ) ∣ ( ♯ ‘ 𝑥 ) = 𝐾 } ) ) |