Step
*
1
of Lemma
term-A-face_wf
1. X : CubicalSet
2. A : {X ⊢ _}
3. a : {X ⊢ _:A}
4. I : Cname List
5. alpha : X(I)
6. i : ℕ2
⊢ alpha = (iota(fresh-cname(I)) o (fresh-cname(I):=i))(alpha) ∈ X(I)
BY
{ Assert ⌜alpha = (fresh-cname(I):=i)(iota(fresh-cname(I))(alpha)) ∈ X(I)⌝⋅ }
1
.....assertion.....
1. X : CubicalSet
2. A : {X ⊢ _}
3. a : {X ⊢ _:A}
4. I : Cname List
5. alpha : X(I)
6. i : ℕ2
⊢ alpha = (fresh-cname(I):=i)(iota(fresh-cname(I))(alpha)) ∈ X(I)
2
1. X : CubicalSet
2. A : {X ⊢ _}
3. a : {X ⊢ _:A}
4. I : Cname List
5. alpha : X(I)
6. i : ℕ2
7. alpha = (fresh-cname(I):=i)(iota(fresh-cname(I))(alpha)) ∈ X(I)
⊢ alpha = (iota(fresh-cname(I)) o (fresh-cname(I):=i))(alpha) ∈ X(I)
Latex:
Latex:
1. X : CubicalSet
2. A : \{X \mvdash{} \_\}
3. a : \{X \mvdash{} \_:A\}
4. I : Cname List
5. alpha : X(I)
6. i : \mBbbN{}2
\mvdash{} alpha = (iota(fresh-cname(I)) o (fresh-cname(I):=i))(alpha)
By
Latex:
Assert \mkleeneopen{}alpha = (fresh-cname(I):=i)(iota(fresh-cname(I))(alpha))\mkleeneclose{}\mcdot{}
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