Metamath Proof Explorer


Theorem om1val

Description: The definition of the loop space. (Contributed by Mario Carneiro, 10-Jul-2015)

Ref Expression
Hypotheses om1val.o ⊢ O = J Ω 1 Y
om1val.b ⊢ φ → B = f ∈ II Cn J | f ⁡ 0 = Y ∧ f ⁡ 1 = Y
om1val.p ⊢ φ → + ˙ = * 𝑝 ⁡ J
om1val.k ⊢ φ → K = J ^ ko II
om1val.j ⊢ φ → J ∈ TopOn ⁡ X
om1val.y ⊢ φ → Y ∈ X
Assertion om1val ⊢ φ → O = Base ndx B + ndx + ˙ TopSet ⁡ ndx K

Proof

Step Hyp Ref Expression
1 om1val.o ⊢ O = J Ω 1 Y
2 om1val.b ⊢ φ → B = f ∈ II Cn J | f ⁡ 0 = Y ∧ f ⁡ 1 = Y
3 om1val.p ⊢ φ → + ˙ = * 𝑝 ⁡ J
4 om1val.k ⊢ φ → K = J ^ ko II
5 om1val.j ⊢ φ → J ∈ TopOn ⁡ X
6 om1val.y ⊢ φ → Y ∈ X
7 df-om1 ⊢ Ω 1 = j ∈ Top , y ∈ ⋃ j ⟼ Base ndx f ∈ II Cn j | f ⁡ 0 = y ∧ f ⁡ 1 = y + ndx * 𝑝 ⁡ j TopSet ⁡ ndx j ^ ko II
8 7 a1i ⊢ φ → Ω 1 = j ∈ Top , y ∈ ⋃ j ⟼ Base ndx f ∈ II Cn j | f ⁡ 0 = y ∧ f ⁡ 1 = y + ndx * 𝑝 ⁡ j TopSet ⁡ ndx j ^ ko II
9 simprl ⊢ φ ∧ j = J ∧ y = Y → j = J
10 9 oveq2d ⊢ φ ∧ j = J ∧ y = Y → II Cn j = II Cn J
11 simprr ⊢ φ ∧ j = J ∧ y = Y → y = Y
12 11 eqeq2d ⊢ φ ∧ j = J ∧ y = Y → f ⁡ 0 = y ↔ f ⁡ 0 = Y
13 11 eqeq2d ⊢ φ ∧ j = J ∧ y = Y → f ⁡ 1 = y ↔ f ⁡ 1 = Y
14 12 13 anbi12d ⊢ φ ∧ j = J ∧ y = Y → f ⁡ 0 = y ∧ f ⁡ 1 = y ↔ f ⁡ 0 = Y ∧ f ⁡ 1 = Y
15 10 14 rabeqbidv ⊢ φ ∧ j = J ∧ y = Y → f ∈ II Cn j | f ⁡ 0 = y ∧ f ⁡ 1 = y = f ∈ II Cn J | f ⁡ 0 = Y ∧ f ⁡ 1 = Y
16 2 adantr ⊢ φ ∧ j = J ∧ y = Y → B = f ∈ II Cn J | f ⁡ 0 = Y ∧ f ⁡ 1 = Y
17 15 16 eqtr4d ⊢ φ ∧ j = J ∧ y = Y → f ∈ II Cn j | f ⁡ 0 = y ∧ f ⁡ 1 = y = B
18 17 opeq2d ⊢ φ ∧ j = J ∧ y = Y → Base ndx f ∈ II Cn j | f ⁡ 0 = y ∧ f ⁡ 1 = y = Base ndx B
19 9 fveq2d ⊢ φ ∧ j = J ∧ y = Y → * 𝑝 ⁡ j = * 𝑝 ⁡ J
20 3 adantr ⊢ φ ∧ j = J ∧ y = Y → + ˙ = * 𝑝 ⁡ J
21 19 20 eqtr4d ⊢ φ ∧ j = J ∧ y = Y → * 𝑝 ⁡ j = + ˙
22 21 opeq2d ⊢ φ ∧ j = J ∧ y = Y → + ndx * 𝑝 ⁡ j = + ndx + ˙
23 9 oveq1d ⊢ φ ∧ j = J ∧ y = Y → j ^ ko II = J ^ ko II
24 4 adantr ⊢ φ ∧ j = J ∧ y = Y → K = J ^ ko II
25 23 24 eqtr4d ⊢ φ ∧ j = J ∧ y = Y → j ^ ko II = K
26 25 opeq2d ⊢ φ ∧ j = J ∧ y = Y → TopSet ⁡ ndx j ^ ko II = TopSet ⁡ ndx K
27 18 22 26 tpeq123d ⊢ φ ∧ j = J ∧ y = Y → Base ndx f ∈ II Cn j | f ⁡ 0 = y ∧ f ⁡ 1 = y + ndx * 𝑝 ⁡ j TopSet ⁡ ndx j ^ ko II = Base ndx B + ndx + ˙ TopSet ⁡ ndx K
28 unieq ⊢ j = J → ⋃ j = ⋃ J
29 28 adantl ⊢ φ ∧ j = J → ⋃ j = ⋃ J
30 toponuni ⊢ J ∈ TopOn ⁡ X → X = ⋃ J
31 5 30 syl ⊢ φ → X = ⋃ J
32 31 adantr ⊢ φ ∧ j = J → X = ⋃ J
33 29 32 eqtr4d ⊢ φ ∧ j = J → ⋃ j = X
34 topontop ⊢ J ∈ TopOn ⁡ X → J ∈ Top
35 5 34 syl ⊢ φ → J ∈ Top
36 tpex ⊢ Base ndx B + ndx + ˙ TopSet ⁡ ndx K ∈ V
37 36 a1i ⊢ φ → Base ndx B + ndx + ˙ TopSet ⁡ ndx K ∈ V
38 8 27 33 35 6 37 ovmpodx ⊢ φ → J Ω 1 Y = Base ndx B + ndx + ˙ TopSet ⁡ ndx K
39 1 38 eqtrid ⊢ φ → O = Base ndx B + ndx + ˙ TopSet ⁡ ndx K