Nuprl Lemma : church-zero_wf
cZ ∈ cNat
Proof
Definitions occuring in Statement :
church-zero: cZ,
church-Nat: cNat,
member: t ∈ T
Definitions unfolded in proof :
church-zero: cZ,
church-Nat: cNat,
member: t ∈ T,
uall: ∀[x:A]. B[x]
Lemmas referenced :
istype-universe
Rules used in proof :
sqequalSubstitution,
sqequalRule,
sqequalReflexivity,
sqequalTransitivity,
computationStep,
isect_memberEquality_alt,
lambdaEquality_alt,
hypothesisEquality,
functionIsType,
inhabitedIsType,
universeIsType,
cut,
instantiate,
introduction,
extract_by_obid,
sqequalHypSubstitution,
isectElimination,
thin,
universeEquality,
hypothesis
Latex:
cZ \mmember{} cNat
Date html generated:
2020_05_20-AM-08_05_18
Last ObjectModification:
2019_11_15-PM-09_51_29
Theory : general
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