Nuprl Lemma : pscm-comp-type
∀[Gamma,Delta,Z,s1,s2,A:Top]. ((A)s2 o s1 ~ ((A)s2)s1)
Proof
Definitions occuring in Statement :
pscm-ap-type: (AF)s,
pscm-comp: G o F,
uall: ∀[x:A]. B[x],
top: Top,
sqequal: s ~ t
Definitions unfolded in proof :
uall: ∀[x:A]. B[x],
pscm-ap-type: (AF)s,
pscm-ap: (s)x,
pscm-comp: G o F,
compose: f o g,
so_lambda: so_lambda(x,y,z,w.t[x; y; z; w]),
member: t ∈ T,
so_apply: x[s1;s2;s3;s4],
so_lambda: λ2x y.t[x; y],
top: Top,
so_apply: x[s1;s2],
uimplies: b supposing a
Lemmas referenced :
lifting-strict-spread,
strict4-spread,
top_wf
Rules used in proof :
sqequalSubstitution,
sqequalTransitivity,
computationStep,
sqequalReflexivity,
isect_memberFormation,
sqequalRule,
cut,
introduction,
extract_by_obid,
sqequalHypSubstitution,
isectElimination,
thin,
baseClosed,
isect_memberEquality,
voidElimination,
voidEquality,
independent_isectElimination,
hypothesis,
because_Cache
Latex:
\mforall{}[Gamma,Delta,Z,s1,s2,A:Top]. ((A)s2 o s1 \msim{} ((A)s2)s1)
Date html generated:
2018_05_22-PM-10_03_34
Last ObjectModification:
2018_05_20-PM-09_47_53
Theory : presheaf!models!of!type!theory
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