Metamath Proof Explorer


Definition df-omn

Description: Define the n-th iterated loop space of a topological space. Unlike Om1 this is actually apointed topological space, which is to say a tuple of a topological space (a member of TopSp , not Top ) and a point in the space. Higher loop spaces select the constant loop at the point from the lower loop space for the distinguished point. (Contributed by Mario Carneiro, 10-Jul-2015)

Ref Expression
Assertion df-omn Ω𝑛 = ( 𝑗 ∈ Top , 𝑦 ∈ ∪ 𝑗 ↦ seq 0 ( ( ( 𝑥 ∈ V , 𝑝 ∈ V ↦ ⟨ ( ( TopOpen ‘ ( 1st ‘ 𝑥 ) ) Ω1 ( 2nd ‘ 𝑥 ) ) , ( ( 0 [,] 1 ) × { ( 2nd ‘ 𝑥 ) } ) ⟩ ) ∘ 1st ) , ⟨ { ⟨ ( Base ‘ ndx ) , ∪ 𝑗 ⟩ , ⟨ ( TopSet ‘ ndx ) , 𝑗 ⟩ } , 𝑦 ⟩ ) )

Detailed syntax breakdown

Step Hyp Ref Expression
0 comn ⊢ Ω𝑛
1 vj ⊢ 𝑗
2 ctop ⊢ Top
3 vy ⊢ 𝑦
4 1 cv ⊢ 𝑗
5 4 cuni ⊢ ∪ 𝑗
6 cc0 ⊢ 0
7 vx ⊢ 𝑥
8 cvv ⊢ V
9 vp ⊢ 𝑝
10 ctopn ⊢ TopOpen
11 c1st ⊢ 1st
12 7 cv ⊢ 𝑥
13 12 11 cfv ⊢ ( 1st ‘ 𝑥 )
14 13 10 cfv ⊢ ( TopOpen ‘ ( 1st ‘ 𝑥 ) )
15 comi ⊢ Ω1
16 c2nd ⊢ 2nd
17 12 16 cfv ⊢ ( 2nd ‘ 𝑥 )
18 14 17 15 co ⊢ ( ( TopOpen ‘ ( 1st ‘ 𝑥 ) ) Ω1 ( 2nd ‘ 𝑥 ) )
19 cicc ⊢ [,]
20 c1 ⊢ 1
21 6 20 19 co ⊢ ( 0 [,] 1 )
22 17 csn ⊢ { ( 2nd ‘ 𝑥 ) }
23 21 22 cxp ⊢ ( ( 0 [,] 1 ) × { ( 2nd ‘ 𝑥 ) } )
24 18 23 cop ⊢ ⟨ ( ( TopOpen ‘ ( 1st ‘ 𝑥 ) ) Ω1 ( 2nd ‘ 𝑥 ) ) , ( ( 0 [,] 1 ) × { ( 2nd ‘ 𝑥 ) } ) ⟩
25 7 9 8 8 24 cmpo ⊢ ( 𝑥 ∈ V , 𝑝 ∈ V ↦ ⟨ ( ( TopOpen ‘ ( 1st ‘ 𝑥 ) ) Ω1 ( 2nd ‘ 𝑥 ) ) , ( ( 0 [,] 1 ) × { ( 2nd ‘ 𝑥 ) } ) ⟩ )
26 25 11 ccom ⊢ ( ( 𝑥 ∈ V , 𝑝 ∈ V ↦ ⟨ ( ( TopOpen ‘ ( 1st ‘ 𝑥 ) ) Ω1 ( 2nd ‘ 𝑥 ) ) , ( ( 0 [,] 1 ) × { ( 2nd ‘ 𝑥 ) } ) ⟩ ) ∘ 1st )
27 cbs ⊢ Base
28 cnx ⊢ ndx
29 28 27 cfv ⊢ ( Base ‘ ndx )
30 29 5 cop ⊢ ⟨ ( Base ‘ ndx ) , ∪ 𝑗 ⟩
31 cts ⊢ TopSet
32 28 31 cfv ⊢ ( TopSet ‘ ndx )
33 32 4 cop ⊢ ⟨ ( TopSet ‘ ndx ) , 𝑗 ⟩
34 30 33 cpr ⊢ { ⟨ ( Base ‘ ndx ) , ∪ 𝑗 ⟩ , ⟨ ( TopSet ‘ ndx ) , 𝑗 ⟩ }
35 3 cv ⊢ 𝑦
36 34 35 cop ⊢ ⟨ { ⟨ ( Base ‘ ndx ) , ∪ 𝑗 ⟩ , ⟨ ( TopSet ‘ ndx ) , 𝑗 ⟩ } , 𝑦 ⟩
37 26 36 6 cseq ⊢ seq 0 ( ( ( 𝑥 ∈ V , 𝑝 ∈ V ↦ ⟨ ( ( TopOpen ‘ ( 1st ‘ 𝑥 ) ) Ω1 ( 2nd ‘ 𝑥 ) ) , ( ( 0 [,] 1 ) × { ( 2nd ‘ 𝑥 ) } ) ⟩ ) ∘ 1st ) , ⟨ { ⟨ ( Base ‘ ndx ) , ∪ 𝑗 ⟩ , ⟨ ( TopSet ‘ ndx ) , 𝑗 ⟩ } , 𝑦 ⟩ )
38 1 3 2 5 37 cmpo ⊢ ( 𝑗 ∈ Top , 𝑦 ∈ ∪ 𝑗 ↦ seq 0 ( ( ( 𝑥 ∈ V , 𝑝 ∈ V ↦ ⟨ ( ( TopOpen ‘ ( 1st ‘ 𝑥 ) ) Ω1 ( 2nd ‘ 𝑥 ) ) , ( ( 0 [,] 1 ) × { ( 2nd ‘ 𝑥 ) } ) ⟩ ) ∘ 1st ) , ⟨ { ⟨ ( Base ‘ ndx ) , ∪ 𝑗 ⟩ , ⟨ ( TopSet ‘ ndx ) , 𝑗 ⟩ } , 𝑦 ⟩ ) )
39 0 38 wceq ⊢ Ω𝑛 = ( 𝑗 ∈ Top , 𝑦 ∈ ∪ 𝑗 ↦ seq 0 ( ( ( 𝑥 ∈ V , 𝑝 ∈ V ↦ ⟨ ( ( TopOpen ‘ ( 1st ‘ 𝑥 ) ) Ω1 ( 2nd ‘ 𝑥 ) ) , ( ( 0 [,] 1 ) × { ( 2nd ‘ 𝑥 ) } ) ⟩ ) ∘ 1st ) , ⟨ { ⟨ ( Base ‘ ndx ) , ∪ 𝑗 ⟩ , ⟨ ( TopSet ‘ ndx ) , 𝑗 ⟩ } , 𝑦 ⟩ ) )