Nuprl Lemma : fills-open_box_wf
∀[X:CubicalSet]. ∀[I,J:Cname List]. ∀[x:nameset(I)]. ∀[i:ℕ2].
  ∀[bx:open_box(X;I;J;x;i)]. ∀[cube:X(I)].  (fills-open_box(X;I;bx;cube) ∈ ℙ) supposing l_subset(Cname;J;I)
Proof
Definitions occuring in Statement : 
fills-open_box: fills-open_box(X;I;bx;cube)
, 
open_box: open_box(X;I;J;x;i)
, 
I-cube: X(I)
, 
cubical-set: CubicalSet
, 
nameset: nameset(L)
, 
coordinate_name: Cname
, 
l_subset: l_subset(T;as;bs)
, 
list: T List
, 
int_seg: {i..j-}
, 
uimplies: b supposing a
, 
uall: ∀[x:A]. B[x]
, 
prop: ℙ
, 
member: t ∈ T
, 
natural_number: $n
Definitions unfolded in proof : 
uall: ∀[x:A]. B[x]
, 
member: t ∈ T
, 
uimplies: b supposing a
, 
fills-open_box: fills-open_box(X;I;bx;cube)
, 
open_box: open_box(X;I;J;x;i)
, 
prop: ℙ
Lemmas referenced : 
fills-faces_wf, 
I-cube_wf, 
open_box_wf, 
l_subset_wf, 
coordinate_name_wf, 
int_seg_wf, 
nameset_wf, 
list_wf, 
cubical-set_wf
Rules used in proof : 
sqequalSubstitution, 
sqequalTransitivity, 
computationStep, 
sqequalReflexivity, 
isect_memberFormation, 
introduction, 
cut, 
sqequalRule, 
lemma_by_obid, 
sqequalHypSubstitution, 
isectElimination, 
thin, 
hypothesisEquality, 
setElimination, 
rename, 
hypothesis, 
axiomEquality, 
equalityTransitivity, 
equalitySymmetry, 
isect_memberEquality, 
because_Cache, 
natural_numberEquality
Latex:
\mforall{}[X:CubicalSet].  \mforall{}[I,J:Cname  List].  \mforall{}[x:nameset(I)].  \mforall{}[i:\mBbbN{}2].
    \mforall{}[bx:open\_box(X;I;J;x;i)].  \mforall{}[cube:X(I)].    (fills-open\_box(X;I;bx;cube)  \mmember{}  \mBbbP{}) 
    supposing  l\_subset(Cname;J;I)
Date html generated:
2016_06_16-PM-06_42_57
Last ObjectModification:
2015_12_28-PM-04_26_16
Theory : cubical!sets
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