Nuprl Lemma : es-prior-interface-vals-property

∀[Info:Type]. ∀[es:EO+(Info)]. ∀[A:Type]. ∀[X:EClass(A)]. ∀[e:E].
  (X(<e) = if e ∈b prior(X) then X(<prior(X)(e)) @ [X(prior(X)(e))] else [] fi  ∈ (A List))


Proof




Definitions occuring in Statement :  es-prior-interface: prior(X),  es-prior-interface-vals: X(<e),  eclass-val: X(e),  in-eclass: e ∈b X,  eclass: EClass(A[eo; e]),  event-ordering+: EO+(Info),  es-E: E,  append: as @ bs,  cons: [a / b],  nil: [],  list: T List,  ifthenelse: if b then t else f fi ,  uall: ∀[x:A]. B[x],  universe: Type,  equal: s = t ∈ T
Lemmas :  es-E_wf,  event-ordering+_subtype,  eclass_wf,  event-ordering+_wf,  es-causl-swellfnd,  nat_properties,  less_than_transitivity1,  less_than_irreflexivity,  ge_wf,  less_than_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,  equal_wf,  decidable__lt,  not-equal-2,  le-add-cancel-alt,  not-le-2,  sq_stable__le,  add-mul-special,  zero-mul,  in-eclass_wf,  es-prior-interface_wf1,  es-interface-subtype_rel2,  top_wf,  subtype_top,  es-E-interface_wf,  bool_wf,  equal-wf-T-base,  assert_wf,  bnot_wf,  not_wf,  eqtt_to_assert,  uiff_transitivity,  eqff_to_assert,  assert_of_bnot,  es-first_wf2,  es-is-prior-interface,  es-locl-first,  assert_elim,  btrue_neq_bfalse,  mapfilter-append,  filter_cons_lemma,  filter_nil_lemma,  es-pred_wf,  es-prior-interface-val-pred,  iff_weakening_equal,  append_wf,  squash_wf,  true_wf,  list_wf,  es-prior-interface-vals_wf,  map_cons_lemma,  map_nil_lemma,  cons_wf,  eclass-val_wf,  event-ordering+_cumulative2,  assert_functionality_wrt_uiff,  nil_wf,  append-nil,  subtype_rel_list,  es-pred-locl,  es-causl_weakening,  es-prior-interface_wf0,  es-E-interface-property,  eclass-val_wf2,  es-prior-interface_wf,  es-is-prior-interface-pred,  filter_is_nil,  es-before_wf,  l_all_iff,  l_member_wf,  es-locl_wf,  member-es-before

Latex:
\mforall{}[Info:Type].  \mforall{}[es:EO+(Info)].  \mforall{}[A:Type].  \mforall{}[X:EClass(A)].  \mforall{}[e:E].
    (X(<e)  =  if  e  \mmember{}\msubb{}  prior(X)  then  X(<prior(X)(e))  @  [X(prior(X)(e))]  else  []  fi  )



Date html generated: 2015_07_21-PM-03_16_42
Last ObjectModification: 2015_02_04-PM-06_21_49

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