Nuprl Definition : A-face-compatible

A-face-compatible(X;A;I;alpha;f1;f2) ==
  let y,b,w f1 in 
  let z,c,u f2 in 
  (y z ∈ Cname))  ((w (y:=b)(alpha) (z:=c)) (u (z:=c)(alpha) (y:=b)) ∈ A(((z:=c) (y:=b))(alpha)))



Definitions occuring in Statement :  cubical-type-ap-morph: (u f) cubical-type-at: A(a) cube-set-restriction: f(s) name-comp: (f g) face-map: (x:=i) cname_deq: CnameDeq coordinate_name: Cname list-diff: as-bs cons: [a b] nil: [] spreadn: spread3 not: ¬A implies:  Q equal: t ∈ T
Definitions occuring in definition :  spreadn: spread3 implies:  Q not: ¬A coordinate_name: Cname equal: t ∈ T cubical-type-at: A(a) name-comp: (f g) cubical-type-ap-morph: (u f) cube-set-restriction: f(s) list-diff: as-bs cname_deq: CnameDeq cons: [a b] nil: [] face-map: (x:=i)
FDL editor aliases :  A-face-compatible

Latex:
A-face-compatible(X;A;I;alpha;f1;f2)  ==
    let  y,b,w  =  f1  in 
    let  z,c,u  =  f2  in 
    (\mneg{}(y  =  z))  {}\mRightarrow{}  ((w  (y:=b)(alpha)  (z:=c))  =  (u  (z:=c)(alpha)  (y:=b)))



Date html generated: 2016_06_16-PM-05_49_57
Last ObjectModification: 2015_09_23-AM-09_31_20

Theory : cubical!sets


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