Nuprl Lemma : class-opt-class_wf

∀[Info,T:Type]. ∀[X,Y:EClass(T)].  (X?Y ∈ EClass(T))


Proof




Definitions occuring in Statement :  class-opt-class: X?Y,  eclass: EClass(A[eo; e]),  uall: ∀[x:A]. B[x],  member: t ∈ T,  universe: Type
Lemmas :  bag-null_wf,  bool_wf,  eqtt_to_assert,  assert-bag-null,  eqff_to_assert,  equal_wf,  bool_cases_sqequal,  subtype_base_sq,  bool_subtype_base,  assert-bnot,  equal-wf-T-base,  bag_wf,  es-E_wf,  event-ordering+_subtype,  eclass_wf,  event-ordering+_wf

Latex:
\mforall{}[Info,T:Type].  \mforall{}[X,Y:EClass(T)].    (X?Y  \mmember{}  EClass(T))



Date html generated: 2015_07_21-PM-02_42_09
Last ObjectModification: 2015_01_27-PM-09_38_52

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