Nuprl Lemma : cubical-term_wf-universe

∀X:j⊢. ({X ⊢ _:c𝕌} ∈ 𝕌{[i' | j']})


Proof




Definitions occuring in Statement :  cubical-universe: c𝕌,  cubical-term: {X ⊢ _:A},  cubical_set: CubicalSet,  all: ∀x:A. B[x],  member: t ∈ T,  universe: Type
Definitions unfolded in proof :  all: ∀x:A. B[x],  uall: ∀[x:A]. B[x],  member: t ∈ T
Lemmas referenced :  cubical-term_wf,  cubical-universe_wf,  cubical_set_wf
Rules used in proof :  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  lambdaFormation_alt,  cut,  thin,  instantiate,  introduction,  extract_by_obid,  hypothesis,  sqequalHypSubstitution,  isectElimination,  hypothesisEquality,  universeIsType

Latex:
\mforall{}X:j\mvdash{}.  (\{X  \mvdash{}  \_:c\mBbbU{}\}  \mmember{}  \mBbbU{}\{[i'  |  j']\})



Date html generated: 2020_05_20-PM-07_07_00
Last ObjectModification: 2020_04_25-PM-01_06_43

Theory : cubical!type!theory


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