Nuprl Lemma : es-search-back_wf

[es:EO]. ∀[T:Type]. ∀[e:E]. ∀[f:{e':E| e' ≤loc }  ─→ (T Top)].  (es-search-back(es;x.f[x];e) ∈ Top)


Proof




Definitions occuring in Statement :  es-search-back: es-search-back(es;x.f[x];e) es-le: e ≤loc e'  es-E: E event_ordering: EO uall: [x:A]. B[x] top: Top so_apply: x[s] member: t ∈ T set: {x:A| B[x]}  function: x:A ─→ B[x] union: left right universe: Type
Lemmas :  gensearch_wf es-le_wf es-rank_wf es-pred?_wf subtype_rel_sum es-locl_wf es-pred_wf es-locl-first assert_elim btrue_neq_bfalse assert_wf es-first_wf2 unit_wf2 top_wf subtype_rel_sets es-locl_transitivity2 es-le_weakening isl_wf set_wf es-le-self es-E_wf event_ordering_wf true_wf false_wf equal_wf es-rank_property es-causl_weakening
\mforall{}[es:EO].  \mforall{}[T:Type].  \mforall{}[e:E].  \mforall{}[f:\{e':E|  e'  \mleq{}loc  e  \}    {}\mrightarrow{}  (T  +  Top)].
    (es-search-back(es;x.f[x];e)  \mmember{}  T  +  Top)



Date html generated: 2015_07_17-AM-08_40_12
Last ObjectModification: 2015_01_27-PM-02_41_28

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