Nuprl Lemma : once-once-class
∀[Info,A:Type]. ∀[X:EClass(A)]. (((X once) once) = (X once) ∈ EClass(A))
Proof
Definitions occuring in Statement :
once-class: (X once),
eclass: EClass(A[eo; e]),
uall: ∀[x:A]. B[x],
universe: Type,
equal: s = t ∈ T
Lemmas :
class-pred-cases,
until-class_wf,
es-interface-subtype_rel2,
es-E_wf,
event-ordering+_subtype,
event-ordering+_wf,
top_wf,
equal_wf,
bag_wf,
empty-bag_wf,
eclass_wf,
equal-wf-base-T,
until-classrel
Latex:
\mforall{}[Info,A:Type]. \mforall{}[X:EClass(A)]. (((X once) once) = (X once))
Date html generated:
2015_07_20-PM-03_59_55
Last ObjectModification:
2015_01_27-PM-09_56_01
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