Nuprl Lemma : Accum-classrel-Memory

[Info,B,A:Type]. [f:A  B  B]. [init:Id  bag(B)]. [X:EClass(A)]. [es:EO+(Info)]. [e:E]. [v:B].
  (v  Accum-class(f;init;X)(e)  a:A. b:B. (a  X(e)  b  Memory-class(f;init;X)(e)  (v = (f a b))))


Proof not projected




Definitions occuring in Statement :  Memory-class: Memory-class(f;init;X) Accum-class: Accum-class(f;init;X) classrel: v  X(e) eclass: EClass(A[eo; e]) event-ordering+: EO+(Info) es-E: E Id: Id uall: [x:A]. B[x] exists: x:A. B[x] iff: P  Q squash: T and: P  Q apply: f a function: x:A  B[x] universe: Type equal: s = t bag: bag(T)
Definitions :  eclass: EClass(A[eo; e]) iff: P  Q squash: T exists: x:A. B[x] and: P  Q top: Top member: t  T so_lambda: x.t[x] implies: P  Q rev_implies: P  Q true: True so_lambda: x y.t[x; y] uall: [x:A]. B[x] prop: so_apply: x[s] all: x:A. B[x] so_apply: x[s1;s2] classrel: v  X(e) subtype: S  T
Lemmas :  Accum-classrel-Memory-sq bag-member_wf lifting-2_wf Memory-class_wf squash_wf exists_wf and_wf equal_wf classrel_wf Accum-class_wf es-E_wf event-ordering+_inc event-ordering+_wf eclass_wf Id_wf bag_wf iff_functionality_wrt_iff iff_weakening_uiff bag-member-lifting-2

\mforall{}[Info,B,A:Type].  \mforall{}[f:A  {}\mrightarrow{}  B  {}\mrightarrow{}  B].  \mforall{}[init:Id  {}\mrightarrow{}  bag(B)].  \mforall{}[X:EClass(A)].  \mforall{}[es:EO+(Info)].  \mforall{}[e:E].
\mforall{}[v:B].
    (v  \mmember{}  Accum-class(f;init;X)(e)
    \mLeftarrow{}{}\mRightarrow{}  \mdownarrow{}\mexists{}a:A.  \mexists{}b:B.  (a  \mmember{}  X(e)  \mwedge{}  b  \mmember{}  Memory-class(f;init;X)(e)  \mwedge{}  (v  =  (f  a  b))))


Date html generated: 2012_01_23-PM-12_57_40
Last ObjectModification: 2012_01_11-AM-11_57_14

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