Metamath Proof Explorer


Theorem om1opn

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

Ref Expression
Hypotheses om1bas.o ⊢ O = J Ω 1 Y
om1bas.j ⊢ φ → J ∈ TopOn ⁡ X
om1bas.y ⊢ φ → Y ∈ X
om1opn.k ⊢ K = TopOpen ⁡ O
om1opn.b ⊢ φ → B = Base O
Assertion om1opn ⊢ φ → K = J ^ ko II ↾ 𝑡 B

Proof

Step Hyp Ref Expression
1 om1bas.o ⊢ O = J Ω 1 Y
2 om1bas.j ⊢ φ → J ∈ TopOn ⁡ X
3 om1bas.y ⊢ φ → Y ∈ X
4 om1opn.k ⊢ K = TopOpen ⁡ O
5 om1opn.b ⊢ φ → B = Base O
6 eqid ⊢ Base O = Base O
7 eqid ⊢ TopSet ⁡ O = TopSet ⁡ O
8 6 7 topnval ⊢ TopSet ⁡ O ↾ 𝑡 Base O = TopOpen ⁡ O
9 4 8 eqtr4i ⊢ K = TopSet ⁡ O ↾ 𝑡 Base O
10 1 2 3 om1tset ⊢ φ → J ^ ko II = TopSet ⁡ O
11 10 5 oveq12d ⊢ φ → J ^ ko II ↾ 𝑡 B = TopSet ⁡ O ↾ 𝑡 Base O
12 9 11 eqtr4id ⊢ φ → K = J ^ ko II ↾ 𝑡 B