Nuprl Lemma : primed-class-opt-single-val0
∀[Info,B:Type]. ∀[es:EO+(Info)]. ∀[X:EClass(B)]. ∀[init:Id ─→ bag(B)].
  ∀e:E. ∀v1,v2:B.
    (single-valued-bag(init loc(e);B)
    ⇒ single-valued-classrel(es;X;B)
    ⇒ v1 ∈ Prior(X)?init(e)
    ⇒ v2 ∈ Prior(X)?init(e)
    ⇒ (v1 = v2 ∈ B))
Proof
Definitions occuring in Statement : 
primed-class-opt: Prior(X)?b, 
single-valued-classrel: single-valued-classrel(es;X;T), 
classrel: v ∈ X(e), 
eclass: EClass(A[eo; e]), 
event-ordering+: EO+(Info), 
es-loc: loc(e), 
es-E: E, 
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, 
equal: s = t ∈ T, 
single-valued-bag: single-valued-bag(b;T), 
bag: bag(T)
Lemmas : 
primed-class-opt-classrel, 
classrel_wf, 
primed-class-opt_wf, 
single-valued-classrel_wf, 
single-valued-bag_wf, 
es-loc_wf, 
event-ordering+_subtype, 
es-E_wf, 
Id_wf, 
bag_wf, 
eclass_wf, 
event-ordering+_wf, 
es-locl-trichotomy, 
and_wf, 
equal_wf
Latex:
\mforall{}[Info,B:Type].  \mforall{}[es:EO+(Info)].  \mforall{}[X:EClass(B)].  \mforall{}[init:Id  {}\mrightarrow{}  bag(B)].
    \mforall{}e:E.  \mforall{}v1,v2:B.
        (single-valued-bag(init  loc(e);B)
        {}\mRightarrow{}  single-valued-classrel(es;X;B)
        {}\mRightarrow{}  v1  \mmember{}  Prior(X)?init(e)
        {}\mRightarrow{}  v2  \mmember{}  Prior(X)?init(e)
        {}\mRightarrow{}  (v1  =  v2))
Date html generated:
2015_07_22-PM-00_08_23
Last ObjectModification:
2015_01_28-AM-11_42_06
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