Nuprl Lemma : alle-lt-iff

es:EO. e':E.  [P:{e:E| loc(e) = loc(e')}   ]. (e<e'.P[e]  P[pred(e')]  e<pred(e').P[e] supposing first(e')\000C)


Proof not projected




Definitions occuring in Statement :  alle-lt: e<e'.P[e] es-pred: pred(e) es-first: first(e) es-loc: loc(e) es-E: E event_ordering: EO Id: Id assert: b uimplies: b supposing a uall: [x:A]. B[x] prop: so_apply: x[s] all: x:A. B[x] iff: P  Q not: A and: P  Q set: {x:A| B[x]}  function: x:A  B[x] equal: s = t
Definitions :  so_lambda: x.t[x] cand: A c B false: False member: t  T rev_implies: P  Q implies: P  Q and: P  Q not: A uimplies: b supposing a so_apply: x[s] alle-lt: e<e'.P[e] iff: P  Q prop: uall: [x:A]. B[x] all: x:A. B[x] es-locl: (e <loc e') or: P  Q
Lemmas :  es-loc-pred event_ordering_wf es-loc_wf Id_wf all_wf not_wf es-E_wf es-pred_wf es-locl_wf es-first_wf assert_wf es-pred-locl es-le_weakening es-locl_transitivity2 member_wf es-locl-iff

\mforall{}es:EO.  \mforall{}e':E.
    \mforall{}[P:\{e:E|  loc(e)  =  loc(e')\}    {}\mrightarrow{}  \mBbbP{}]
        (\mforall{}e<e'.P[e]  \mLeftarrow{}{}\mRightarrow{}  P[pred(e')]  \mwedge{}  \mforall{}e<pred(e').P[e]  supposing  \mneg{}\muparrow{}first(e'))


Date html generated: 2012_01_23-PM-12_13_53
Last ObjectModification: 2011_12_13-AM-10_30_46

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