Nuprl Lemma : es-interface-predecessors-step

[Info:Type]. ∀[es:EO+(Info)]. ∀[X:EClass(Top)]. ∀[e:E(X)].
  (≤(X)(e) if e ∈b prior(X) then ≤(X)(prior(X)(e)) [e] else [e] fi  ∈ ({a:E(X)| loc(a) loc(e) ∈ Id}  List))


Proof




Definitions occuring in Statement :  es-prior-interface: prior(X) es-interface-predecessors: (X)(e) es-E-interface: E(X) eclass-val: X(e) in-eclass: e ∈b X eclass: EClass(A[eo; e]) event-ordering+: EO+(Info) es-loc: loc(e) Id: Id append: as bs cons: [a b] nil: [] list: List ifthenelse: if then else fi  uall: [x:A]. B[x] top: Top set: {x:A| B[x]}  universe: Type equal: t ∈ T
Lemmas :  es-interface-predecessors-step-sq in-eclass_wf es-prior-interface_wf0 bool_wf eqtt_to_assert append_wf Id_wf es-loc_wf event-ordering+_subtype es-interface-predecessors_wf eclass-val_wf2 es-prior-interface_wf subtype_rel_list_set es-loc-prior-interface iff_weakening_equal equal_wf cons_wf nil_wf eqff_to_assert bool_cases_sqequal subtype_base_sq bool_subtype_base assert-bnot assert_elim not_assert_elim btrue_neq_bfalse es-interface-subtype_rel2 es-E_wf event-ordering+_wf top_wf subtype_top list_ind_nil_lemma es-E-interface_wf eclass_wf

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



Date html generated: 2015_07_21-PM-03_33_00
Last ObjectModification: 2015_02_04-PM-06_13_45

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