Nuprl Lemma : cubes-id

∀[X:Top]. (cat-id(cubes(X)) ~ λ_.1)


Proof




Definitions occuring in Statement :  cubes: cubes(X),  nh-id: 1,  cat-id: cat-id(C),  uall: ∀[x:A]. B[x],  top: Top,  lambda: λx.A[x],  sqequal: s ~ t
Definitions unfolded in proof :  uall: ∀[x:A]. B[x],  member: t ∈ T,  cubes: cubes(X),  cube-cat: CubeCat,  all: ∀x:A. B[x],  top: Top
Lemmas referenced :  sets-id,  cube-cat_wf,  cat_id_tuple_lemma
Rules used in proof :  cut,  introduction,  extract_by_obid,  sqequalHypSubstitution,  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  isectElimination,  thin,  hypothesis,  sqequalRule,  dependent_functionElimination,  isect_memberEquality,  voidElimination,  voidEquality

Latex:
\mforall{}[X:Top].  (cat-id(cubes(X))  \msim{}  \mlambda{}$_{}$.1)



Date html generated: 2018_05_23-AM-08_33_18
Last ObjectModification: 2018_05_20-PM-05_46_24

Theory : cubical!type!theory


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