Nuprl Lemma : istype-sqle
∀[a,b:Base]. istype(a ≤ b)
Proof
Definitions occuring in Statement :
istype: istype(T),
uall: ∀[x:A]. B[x],
base: Base,
sqle: s ≤ t
Definitions unfolded in proof :
uall: ∀[x:A]. B[x],
member: t ∈ T,
prop: ℙ
Lemmas referenced :
sqle_wf_base,
base_wf
Rules used in proof :
sqequalSubstitution,
sqequalTransitivity,
computationStep,
sqequalReflexivity,
Error :isect_memberFormation_alt,
Error :universeIsType,
cut,
introduction,
extract_by_obid,
sqequalHypSubstitution,
isectElimination,
thin,
hypothesisEquality,
hypothesis,
Error :inhabitedIsType
Latex:
\mforall{}[a,b:Base]. istype(a \mleq{} b)
Date html generated:
2019_06_20-AM-11_20_33
Last ObjectModification:
2018_09_29-PM-11_07_20
Theory : call!by!value_1
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