Nuprl Lemma : istype-less_than
∀[a,b:ℤ]. istype(a < b)
Proof
Definitions occuring in Statement :
less_than: a < b,
istype: istype(T),
uall: ∀[x:A]. B[x],
int: ℤ
Definitions unfolded in proof :
uall: ∀[x:A]. B[x],
member: t ∈ T,
prop: ℙ
Lemmas referenced :
less_than_wf,
istype-int
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:\mBbbZ{}]. istype(a < b)
Date html generated:
2019_06_20-AM-11_18_51
Last ObjectModification:
2018_10_10-PM-07_12_07
Theory : core_2
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