Nuprl Lemma : Accum-class-single-val

[Info,A,B:Type]. ∀[es:EO+(Info)].
  ∀X:EClass(A)
    ∀[init:Id ⟶ bag(B)]. ∀[f:A ⟶ B ⟶ B].
      (single-valued-classrel(es;X;A)
       (∀l:Id. single-valued-bag(init l;B))
       single-valued-classrel(es;Accum-class(f;init;X);B))


Proof




Definitions occuring in Statement :  Accum-class: Accum-class(f;init;X) single-valued-classrel: single-valued-classrel(es;X;T) eclass: EClass(A[eo; e]) event-ordering+: EO+(Info) Id: Id uall: [x:A]. B[x] all: x:A. B[x] implies:  Q apply: a function: x:A ⟶ B[x] universe: Type single-valued-bag: single-valued-bag(b;T) bag: bag(T)
Definitions unfolded in proof :  Accum-class: Accum-class(f;init;X) uall: [x:A]. B[x] member: t ∈ T uimplies: supposing a so_lambda: λ2x.t[x] so_apply: x[s] prop: subtype_rel: A ⊆B all: x:A. B[x] so_lambda: λ2y.t[x; y] so_apply: x[s1;s2] implies:  Q single-valued-classrel: single-valued-classrel(es;X;T)

Latex:
\mforall{}[Info,A,B:Type].  \mforall{}[es:EO+(Info)].
    \mforall{}X:EClass(A)
        \mforall{}[init:Id  {}\mrightarrow{}  bag(B)].  \mforall{}[f:A  {}\mrightarrow{}  B  {}\mrightarrow{}  B].
            (single-valued-classrel(es;X;A)
            {}\mRightarrow{}  (\mforall{}l:Id.  single-valued-bag(init  l;B))
            {}\mRightarrow{}  single-valued-classrel(es;Accum-class(f;init;X);B))



Date html generated: 2016_05_17-AM-09_31_46
Last ObjectModification: 2015_12_29-PM-04_00_36

Theory : classrel!lemmas


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