Step * of Lemma cubical-type-ap-rename-one-equal

[X:CubicalSet]. ∀[A:{X ⊢ _}]. ∀[I:Cname List]. ∀[x,y:Cname]. ∀[a:X([x I])]. ∀[u,v:A(a)].
  v ∈ A(a) ⇐⇒ (u rename-one-name(x;y)) (v rename-one-name(x;y)) ∈ A(rename-one-name(x;y)(a)) 
  supposing (y ∈ I)) ∧ (x ∈ I))
BY
(Auto THEN Assert ⌜(rename-one-name(x;y) rename-one-name(y;x)) 1 ∈ name-morph([x I];[x I])⌝⋅}

1
.....assertion..... 
1. CubicalSet
2. {X ⊢ _}
3. Cname List
4. Cname
5. Cname
6. X([x I])
7. A(a)
8. A(a)
9. ¬(y ∈ I)
10. ¬(x ∈ I)
11. (u rename-one-name(x;y)) (v rename-one-name(x;y)) ∈ A(rename-one-name(x;y)(a))
⊢ (rename-one-name(x;y) rename-one-name(y;x)) 1 ∈ name-morph([x I];[x I])

2
1. CubicalSet
2. {X ⊢ _}
3. Cname List
4. Cname
5. Cname
6. X([x I])
7. A(a)
8. A(a)
9. ¬(y ∈ I)
10. ¬(x ∈ I)
11. (u rename-one-name(x;y)) (v rename-one-name(x;y)) ∈ A(rename-one-name(x;y)(a))
12. (rename-one-name(x;y) rename-one-name(y;x)) 1 ∈ name-morph([x I];[x I])
⊢ v ∈ A(a)


Latex:


Latex:
\mforall{}[X:CubicalSet].  \mforall{}[A:\{X  \mvdash{}  \_\}].  \mforall{}[I:Cname  List].  \mforall{}[x,y:Cname].  \mforall{}[a:X([x  /  I])].  \mforall{}[u,v:A(a)].
    u  =  v  \mLeftarrow{}{}\mRightarrow{}  (u  a  rename-one-name(x;y))  =  (v  a  rename-one-name(x;y)) 
    supposing  (\mneg{}(y  \mmember{}  I))  \mwedge{}  (\mneg{}(x  \mmember{}  I))


By


Latex:
(Auto  THEN  Assert  \mkleeneopen{}(rename-one-name(x;y)  o  rename-one-name(y;x))  =  1\mkleeneclose{}\mcdot{})




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