Nuprl Lemma : istype-true
istype(True)
Proof
Definitions occuring in Statement : 
istype: istype(T)
, 
true: True
Definitions unfolded in proof : 
member: t ∈ T
, 
prop: ℙ
Lemmas referenced : 
true_wf
Rules used in proof : 
Error :universeIsType, 
sqequalSubstitution, 
sqequalTransitivity, 
computationStep, 
sqequalReflexivity, 
cut, 
introduction, 
extract_by_obid, 
sqequalHypSubstitution, 
hypothesis
Latex:
istype(True)
Date html generated:
2019_06_20-AM-11_14_24
Last ObjectModification:
2019_02_26-PM-03_00_14
Theory : core_2
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