Nuprl Lemma : cubical-universe_wf
c𝕌 ∈ CubicalSet'
Proof
Definitions occuring in Statement : 
cubical-universe: c𝕌
, 
cubical-set: CubicalSet
, 
member: t ∈ T
Definitions unfolded in proof : 
cubical-universe: c𝕌
, 
member: t ∈ T
, 
cubical-set: CubicalSet
, 
and: P ∧ Q
, 
uall: ∀[x:A]. B[x]
, 
so_lambda: λ2x.t[x]
, 
so_apply: x[s]
, 
all: ∀x:A. B[x]
, 
prop: ℙ
, 
cand: A c∧ B
, 
compose: f o g
Lemmas referenced : 
all_wf, 
list_wf, 
coordinate_name_wf, 
name-morph_wf, 
equal_wf, 
name-comp_wf, 
compose_wf, 
equal-wf-T-base, 
id-morph_wf, 
Kan-cubical-type_wf, 
unit-cube_wf, 
csm-Kan-cubical-type_wf, 
unit-cube-map_wf, 
csm-Kan-unit-cube-comp, 
csm-Kan-unit-cube-id
Rules used in proof : 
sqequalSubstitution, 
sqequalTransitivity, 
computationStep, 
sqequalReflexivity, 
dependent_set_memberEquality, 
sqequalRule, 
spreadEquality, 
hypothesisEquality, 
productEquality, 
cut, 
thin, 
instantiate, 
introduction, 
extract_by_obid, 
sqequalHypSubstitution, 
isectElimination, 
cumulativity, 
hypothesis, 
lambdaEquality, 
functionEquality, 
applyEquality, 
baseClosed, 
dependent_pairEquality, 
functionExtensionality, 
lambdaFormation, 
dependent_functionElimination, 
independent_pairFormation
Latex:
c\mBbbU{}  \mmember{}  CubicalSet'
Date html generated:
2018_05_23-PM-07_28_22
Last ObjectModification:
2018_05_20-PM-05_29_11
Theory : cubical!sets
Home
Index