Step * 1 1 1 1 1 1 of Lemma Kan_id_filler_wf1

.....assertion..... 
1. CubicalSet
2. {X ⊢ _(Kan)}
3. {X ⊢ _:Kan-type(A)}
4. {X ⊢ _:Kan-type(A)}
5. Cname List
6. alpha X(I)
7. nameset(I) List
8. nameset(I)
9. : ℕ2
10. bx A-open-box(X;(Id_Kan-type(A) b);I;alpha;J;x;i)
11. l_subset(Cname;[fresh-cname(I) J];[fresh-cname(I) I])
12. ¬(fresh-cname(I) ∈ I)
13. cube Kan-type(A)(iota(fresh-cname(I))(alpha))
14. fills-A-open-box(X;Kan-type(A);[fresh-cname(I) 
                                    I];iota(fresh-cname(I))(alpha);cubical-id-box(X;Kan-type(A);a;b;I;alpha;bx);cube)
⊢ is-A-face(X;Kan-type(A);[fresh-cname(I) I];iota(fresh-cname(I))(alpha);cube;term-A-face(a;I;alpha;0))
∧ is-A-face(X;Kan-type(A);[fresh-cname(I) I];iota(fresh-cname(I))(alpha);cube;term-A-face(b;I;alpha;1))
BY
xxxRepUR ``fills-A-open-box fills-A-faces cubical-id-box lift-id-faces extend-A-open-box`` -1xxx }

1
1. CubicalSet
2. {X ⊢ _(Kan)}
3. {X ⊢ _:Kan-type(A)}
4. {X ⊢ _:Kan-type(A)}
5. Cname List
6. alpha X(I)
7. nameset(I) List
8. nameset(I)
9. : ℕ2
10. bx A-open-box(X;(Id_Kan-type(A) b);I;alpha;J;x;i)
11. l_subset(Cname;[fresh-cname(I) J];[fresh-cname(I) I])
12. ¬(fresh-cname(I) ∈ I)
13. cube Kan-type(A)(iota(fresh-cname(I))(alpha))
14. (∀f∈[term-A-face(a;I;alpha;0); [term-A-face(b;I;alpha;1) map(λface.lift-id-face(X;Kan-type(A);I;alpha;face);bx)]].
       is-A-face(X;Kan-type(A);[fresh-cname(I) I];iota(fresh-cname(I))(alpha);cube;f))
⊢ is-A-face(X;Kan-type(A);[fresh-cname(I) I];iota(fresh-cname(I))(alpha);cube;term-A-face(a;I;alpha;0))
∧ is-A-face(X;Kan-type(A);[fresh-cname(I) I];iota(fresh-cname(I))(alpha);cube;term-A-face(b;I;alpha;1))


Latex:


Latex:
.....assertion..... 
1.  X  :  CubicalSet
2.  A  :  \{X  \mvdash{}  \_(Kan)\}
3.  a  :  \{X  \mvdash{}  \_:Kan-type(A)\}
4.  b  :  \{X  \mvdash{}  \_:Kan-type(A)\}
5.  I  :  Cname  List
6.  alpha  :  X(I)
7.  J  :  nameset(I)  List
8.  x  :  nameset(I)
9.  i  :  \mBbbN{}2
10.  bx  :  A-open-box(X;(Id\_Kan-type(A)  a  b);I;alpha;J;x;i)
11.  l\_subset(Cname;[fresh-cname(I)  /  J];[fresh-cname(I)  /  I])
12.  \mneg{}(fresh-cname(I)  \mmember{}  I)
13.  cube  :  Kan-type(A)(iota(fresh-cname(I))(alpha))
14.  fills-A-open-box(X;Kan-type(A);[fresh-cname(I)  / 
                                                                        I];iota(fresh-cname(I))(alpha);...;cube)
\mvdash{}  is-A-face(X;Kan-type(A);[fresh-cname(I)  / 
                                                      I];iota(fresh-cname(I))(alpha);cube;term-A-face(a;I;alpha;0))
\mwedge{}  is-A-face(X;Kan-type(A);[fresh-cname(I)  / 
                                                      I];iota(fresh-cname(I))(alpha);cube;term-A-face(b;I;alpha;1))


By


Latex:
xxxRepUR  ``fills-A-open-box  fills-A-faces  cubical-id-box  lift-id-faces  extend-A-open-box``  -1xxx




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