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: P 
⇒ Q
, 
apply: f 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: b supposing a
, 
so_lambda: λ2x.t[x]
, 
so_apply: x[s]
, 
prop: ℙ
, 
subtype_rel: A ⊆r B
, 
all: ∀x:A. B[x]
, 
so_lambda: λ2x y.t[x; y]
, 
so_apply: x[s1;s2]
, 
implies: P 
⇒ 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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