Nuprl Lemma : istype-nat
istype(ℕ)
Proof
Definitions occuring in Statement :
nat: ℕ,
istype: istype(T)
Definitions unfolded in proof :
member: t ∈ T
Lemmas referenced :
nat_wf
Rules used in proof :
Error :universeIsType,
sqequalSubstitution,
sqequalTransitivity,
computationStep,
sqequalReflexivity,
cut,
introduction,
extract_by_obid,
hypothesis
Latex:
istype(\mBbbN{})
Date html generated:
2019_06_20-AM-11_23_09
Last ObjectModification:
2018_09_29-PM-09_29_13
Theory : arithmetic
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