Nuprl Lemma : accum-class_wf

∀[Info,A,B:Type]. ∀[X:EClass(A)]. ∀[b:A ─→ B]. ∀[f:B ─→ A ─→ B].  (accum-class(b,a.f[b;a];a.b[a];X) ∈ EClass(B))


Proof




Definitions occuring in Statement :  accum-class: accum-class(a,x.f[a; x];x.base[x];X),  eclass: EClass(A[eo; e]),  uall: ∀[x:A]. B[x],  so_apply: x[s1;s2],  so_apply: x[s],  member: t ∈ T,  function: x:A ─→ B[x],  universe: Type
Lemmas :  in-eclass_wf,  es-interface-subtype_rel2,  es-E_wf,  event-ordering+_subtype,  top_wf,  bool_wf,  eqtt_to_assert,  single-bag_wf,  accum_list_wf,  es-E-interface_wf,  Id_wf,  es-loc_wf,  eclass-val_wf,  assert_elim,  subtype_base_sq,  bool_subtype_base,  es-interface-predecessors_wf,  es-interface-predecessors-nonempty,  assert_wf,  eqff_to_assert,  equal_wf,  bool_cases_sqequal,  assert-bnot,  empty-bag_wf,  eclass_wf,  event-ordering+_wf

Latex:
\mforall{}[Info,A,B:Type].  \mforall{}[X:EClass(A)].  \mforall{}[b:A  {}\mrightarrow{}  B].  \mforall{}[f:B  {}\mrightarrow{}  A  {}\mrightarrow{}  B].
    (accum-class(b,a.f[b;a];a.b[a];X)  \mmember{}  EClass(B))



Date html generated: 2015_07_20-PM-03_48_23
Last ObjectModification: 2015_01_27-PM-10_09_34

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