Nuprl Lemma : decidable__alle-lt

es:EO. ∀e':E.  ∀[P:{e:E| loc(e) loc(e') ∈ Id}  ─→ ℙ]. (∀e@loc(e').Dec(P[e])  Dec(∀e<e'.P[e]))


Proof




Definitions occuring in Statement :  alle-lt: e<e'.P[e] alle-at: e@i.P[e] es-loc: loc(e) es-E: E event_ordering: EO Id: Id decidable: Dec(P) uall: [x:A]. B[x] prop: so_apply: x[s] all: x:A. B[x] implies:  Q set: {x:A| B[x]}  function: x:A ─→ B[x] equal: t ∈ T
Lemmas :  es-locl-wellfnd event_system-level-subtype uall_wf Id_wf es-loc_wf alle-at_wf decidable_wf alle-lt_wf all_wf es-E_wf es-locl_wf event_ordering_wf decidable_functionality isect_wf not_wf assert_wf es-first_wf2 es-pred-loc-base iff_weakening_equal es-pred_wf alle-lt-iff bool_wf eqtt_to_assert uiff_transitivity equal-wf-T-base bnot_wf eqff_to_assert assert_of_bnot true_wf es-pred-locl subtype_rel_dep_function subtype_rel_sets equal_wf subtype_rel_self set_wf decidable__implies false_wf decidable__not decidable__false decidable__cand
\mforall{}es:EO.  \mforall{}e':E.    \mforall{}[P:\{e:E|  loc(e)  =  loc(e')\}    {}\mrightarrow{}  \mBbbP{}].  (\mforall{}e@loc(e').Dec(P[e])  {}\mRightarrow{}  Dec(\mforall{}e<e'.P[e]))



Date html generated: 2015_07_17-AM-08_46_33
Last ObjectModification: 2015_02_04-PM-05_56_08

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