Nuprl Lemma : parallel-class-disjoint-classrel
[A,B:
']. 
[es:EO']. 
[X,Y:EClass'(A)]. 
[Z:EClass'(B)].
  (disjoint-classrel(es;A;X;B;Z) 
 disjoint-classrel(es;A;Y;B;Z) 
 disjoint-classrel(es;A;X || Y;B;Z))
Proof not projected
Definitions occuring in Statement : 
Message: Message, 
parallel-class: X || Y, 
disjoint-classrel: disjoint-classrel(es;A;X;B;Y), 
eclass: EClass(A[eo; e]), 
event-ordering+: EO+(Info), 
uall:
[x:A]. B[x], 
implies: P 
 Q, 
universe: Type
Definitions : 
uall:
[x:A]. B[x], 
eclass: EClass(A[eo; e]), 
implies: P 
 Q, 
disjoint-classrel: disjoint-classrel(es;A;X;B;Y), 
all:
x:A. B[x], 
or: P 
 Q, 
not:
A, 
member: t 
 T, 
false: False, 
so_lambda: 
x.t[x], 
guard: {T}, 
uimplies: b supposing a, 
sq_or: a 
 b, 
uiff: uiff(P;Q), 
and: P 
 Q, 
squash:
T, 
so_apply: x[s], 
prop:
, 
subtype: S 
 T
Lemmas : 
parallel-classrel, 
all_wf, 
not_wf, 
classrel_wf, 
parallel-class_wf, 
es-E_wf, 
event-ordering+_inc, 
disjoint-classrel_wf, 
Message_wf, 
event-ordering+_wf, 
bag_wf
\mforall{}[A,B:\mBbbU{}'].  \mforall{}[es:EO'].  \mforall{}[X,Y:EClass'(A)].  \mforall{}[Z:EClass'(B)].
    (disjoint-classrel(es;A;X;B;Z)
    {}\mRightarrow{}  disjoint-classrel(es;A;Y;B;Z)
    {}\mRightarrow{}  disjoint-classrel(es;A;X  ||  Y;B;Z))
Date html generated:
2012_01_23-PM-01_24_43
Last ObjectModification:
2012_01_12-PM-12_34_46
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