Nuprl Lemma : iterated_classrel-exists-iff

[Info,A,S:Type]. ∀[init:Id ─→ bag(S)]. ∀[f:A ─→ S ─→ S]. ∀[X:EClass(A)]. ∀[es:EO+(Info)]. ∀[e:E].
  uiff(↓∃s:S. s ↓∈ init loc(e);↓∃v:S. iterated_classrel(es;S;A;f;init;X;e;v))


Proof




Definitions occuring in Statement :  iterated_classrel: iterated_classrel(es;S;A;f;init;X;e;v) eclass: EClass(A[eo; e]) event-ordering+: EO+(Info) es-loc: loc(e) es-E: E Id: Id uiff: uiff(P;Q) uall: [x:A]. B[x] exists: x:A. B[x] squash: T apply: a function: x:A ─→ B[x] universe: Type bag-member: x ↓∈ bs bag: bag(T)
Lemmas :  iterated_classrel-exists squash_wf exists_wf bag-member_wf es-loc_wf event-ordering+_subtype es-causl-swellfnd nat_properties less_than_transitivity1 less_than_irreflexivity ge_wf less_than_wf iterated_classrel_wf int_seg_wf int_seg_subtype-nat decidable__le subtract_wf false_wf not-ge-2 less-iff-le condition-implies-le minus-one-mul zero-add minus-add minus-minus add-associates add-swap add-commutes add_functionality_wrt_le add-zero le-add-cancel decidable__equal_int subtype_rel-int_seg le_weakening int_seg_properties le_wf nat_wf zero-le-nat lelt_wf es-causl_wf es-first_wf2 bool_cases subtype_base_sq bool_wf bool_subtype_base eqtt_to_assert eqff_to_assert assert_of_bnot es-pred_wf es-pred-locl es-causl_weakening true_wf bag_wf es-pred-loc-base iff_weakening_equal equal_wf decidable__lt not-equal-2 le-add-cancel-alt not-le-2 sq_stable__le add-mul-special zero-mul es-E_wf event-ordering+_wf eclass_wf Id_wf
\mforall{}[Info,A,S:Type].  \mforall{}[init:Id  {}\mrightarrow{}  bag(S)].  \mforall{}[f:A  {}\mrightarrow{}  S  {}\mrightarrow{}  S].  \mforall{}[X:EClass(A)].  \mforall{}[es:EO+(Info)].  \mforall{}[e:E].
    uiff(\mdownarrow{}\mexists{}s:S.  s  \mdownarrow{}\mmember{}  init  loc(e);\mdownarrow{}\mexists{}v:S.  iterated\_classrel(es;S;A;f;init;X;e;v))



Date html generated: 2015_07_17-PM-00_23_25
Last ObjectModification: 2015_02_04-PM-05_36_04

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