Nuprl Lemma : wf_term_var_lemma
∀v,arity,sort:Top. (wf-term(arity;sort;varterm(v)) ~ tt)
Proof
Definitions occuring in Statement :
wf-term: wf-term(arity;sort;t),
varterm: varterm(v),
btrue: tt,
top: Top,
all: ∀x:A. B[x],
sqequal: s ~ t
Definitions unfolded in proof :
all: ∀x:A. B[x],
wf-term: wf-term(arity;sort;t),
varterm: varterm(v),
btrue: tt,
member: t ∈ T
Lemmas referenced :
istype-top
Rules used in proof :
sqequalSubstitution,
sqequalTransitivity,
computationStep,
sqequalReflexivity,
lambdaFormation_alt,
cut,
sqequalRule,
hypothesis,
inhabitedIsType,
hypothesisEquality,
introduction,
extract_by_obid
Latex:
\mforall{}v,arity,sort:Top. (wf-term(arity;sort;varterm(v)) \msim{} tt)
Date html generated:
2020_05_19-PM-09_58_17
Last ObjectModification:
2020_03_09-PM-04_10_13
Theory : terms
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