Nuprl Lemma : name-morph-flip-face-map
∀I:Cname List. ∀y:nameset(I). ∀a:ℕ2. ∀c1:name-morph(I;[]). ∀v:nameset(I).
  ((¬(v = y ∈ Cname)) 
⇒ (flip(((y:=a) o c1);v) = ((y:=a) o flip(c1;v)) ∈ name-morph(I;[])))
Proof
Definitions occuring in Statement : 
name-morph-flip: flip(f;y)
, 
name-comp: (f o g)
, 
face-map: (x:=i)
, 
name-morph: name-morph(I;J)
, 
nameset: nameset(L)
, 
coordinate_name: Cname
, 
nil: []
, 
list: T List
, 
int_seg: {i..j-}
, 
all: ∀x:A. B[x]
, 
not: ¬A
, 
implies: P 
⇒ Q
, 
natural_number: $n
, 
equal: s = t ∈ T
Definitions unfolded in proof : 
all: ∀x:A. B[x]
, 
member: t ∈ T
, 
subtype_rel: A ⊆r B
, 
uall: ∀[x:A]. B[x]
, 
nameset: nameset(L)
, 
uimplies: b supposing a
Lemmas referenced : 
name-morph-flip-face-map1, 
name-morph_subtype, 
nil_wf, 
coordinate_name_wf, 
list-diff_wf, 
cname_deq_wf, 
cons_wf, 
nameset_wf, 
nameset_subtype, 
list-diff-subset, 
name-morph_wf, 
int_seg_wf, 
list_wf
Rules used in proof : 
cut, 
lemma_by_obid, 
sqequalSubstitution, 
sqequalTransitivity, 
computationStep, 
sqequalReflexivity, 
lambdaFormation, 
hypothesis, 
sqequalHypSubstitution, 
dependent_functionElimination, 
thin, 
hypothesisEquality, 
applyEquality, 
isectElimination, 
setElimination, 
rename, 
because_Cache, 
independent_isectElimination, 
lambdaEquality, 
sqequalRule, 
natural_numberEquality
Latex:
\mforall{}I:Cname  List.  \mforall{}y:nameset(I).  \mforall{}a:\mBbbN{}2.  \mforall{}c1:name-morph(I;[]).  \mforall{}v:nameset(I).
    ((\mneg{}(v  =  y))  {}\mRightarrow{}  (flip(((y:=a)  o  c1);v)  =  ((y:=a)  o  flip(c1;v))))
Date html generated:
2016_06_16-PM-05_35_18
Last ObjectModification:
2015_12_28-PM-04_38_16
Theory : cubical!sets
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