Nuprl Lemma : csm-ap-type-fst-adjoin

∀[X:j⊢]. ∀[B:{X ⊢ _}]. ∀[s,u:Top].  (((B)p)(s;u) ~ (B)s)


Proof




Definitions occuring in Statement :  csm-adjoin: (s;u),  cc-fst: p,  csm-ap-type: (AF)s,  cubical-type: {X ⊢ _},  cubical_set: CubicalSet,  uall: ∀[x:A]. B[x],  top: Top,  sqequal: s ~ t
Definitions unfolded in proof :  uall: ∀[x:A]. B[x],  member: t ∈ T,  cubical_set: CubicalSet,  csm-ap-type: (AF)s,  pscm-ap-type: (AF)s,  csm-ap: (s)x,  pscm-ap: (s)x,  cc-fst: p,  psc-fst: p,  csm-adjoin: (s;u),  pscm-adjoin: (s;u)
Lemmas referenced :  pscm-ap-type-fst-adjoin,  cube-cat_wf,  cubical-type-sq-presheaf-type
Rules used in proof :  cut,  introduction,  extract_by_obid,  sqequalHypSubstitution,  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  isectElimination,  thin,  hypothesis,  sqequalRule,  Error :memTop

Latex:
\mforall{}[X:j\mvdash{}].  \mforall{}[B:\{X  \mvdash{}  \_\}].  \mforall{}[s,u:Top].    (((B)p)(s;u)  \msim{}  (B)s)



Date html generated: 2020_05_20-PM-01_57_27
Last ObjectModification: 2020_04_03-PM-08_31_30

Theory : cubical!type!theory


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