{ es:EO
    [P,Q,P',Q':E  ].
      f:{e:E| P e}   {e:E| Q e} 
        (P  P'  Q  Q'  (Q ==f== P  Q' ==f== P')) }

{ Proof }



Definitions occuring in Statement :  weak-antecedent-function: Q ==f== P es-E: E event_ordering: EO uall: [x:A]. B[x] prop: all: x:A. B[x] iff: P  Q implies: P  Q set: {x:A| B[x]}  apply: f a function: x:A  B[x] predicate_equivalent: P1  P2
Definitions :  all: x:A. B[x] uall: [x:A]. B[x] prop: implies: P  Q predicate_equivalent: P1  P2 iff: P  Q and: P  Q rev_implies: P  Q member: t  T subtype: S  T suptype: suptype(S; T) weak-antecedent-function: Q ==f== P cand: A c B guard: {T}
Lemmas :  weak-antecedent-function_wf es-E_wf iff_wf event_ordering_wf

\mforall{}es:EO
    \mforall{}[P,Q,P',Q':E  {}\mrightarrow{}  \mBbbP{}].
        \mforall{}f:\{e:E|  P  e\}    {}\mrightarrow{}  \{e:E|  Q  e\}  .  (P  \mLeftarrow{}{}\mRightarrow{}  P'  {}\mRightarrow{}  Q  \mLeftarrow{}{}\mRightarrow{}  Q'  {}\mRightarrow{}  (Q  \mleftarrow{}==f==  P  \mLeftarrow{}{}\mRightarrow{}  Q'  \mleftarrow{}==f==  P'))


Date html generated: 2011_08_16-AM-11_06_42
Last ObjectModification: 2011_06_18-AM-09_39_02

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