{ 
[Info:Type]. [es:EO+(Info)]. [X,Y,Z:EClass(Top)].
(E([X?Y]) 
E(Z)) supposing ((E(Y) r E(Z)) and (E(X) r E(Z))) }
{ Proof }
Definitions occuring in Statement :
es-E-interface: E(X),
cond-class: [X?Y],
eclass: EClass(A[eo; e]),
event-ordering+: EO+(Info),
subtype_rel: A r B,
uimplies: b supposing a,
uall: [x:A]. B[x],
top: Top,
subtype: S T,
universe: Type
Definitions :
uall: [x:A]. B[x],
uimplies: b supposing a,
subtype: S T,
member: t 
T,
all: x:A. B[x],
so_lambda: 
x y.t[x; y],
es-E-interface: E(X),
so_apply: x[s1;s2],
iff: P 
Q,
or: P 
Q,
and: P 
Q,
implies: P Q,
prop: 
Lemmas :
es-E-interface_wf,
cond-class_wf,
top_wf,
eclass_wf,
es-E_wf,
event-ordering+_wf,
event-ordering+_inc,
es-interface-conditional-domain-member,
assert_wf,
in-eclass_wf
\mforall{}[Info:Type]. \mforall{}[es:EO+(Info)]. \mforall{}[X,Y,Z:EClass(Top)].
(E([X?Y]) \msubseteq{} E(Z)) supposing ((E(Y) \msubseteq{}r E(Z)) and (E(X) \msubseteq{}r E(Z)))
Date html generated:
2011_08_16-PM-04_02_04
Last ObjectModification:
2011_06_20-AM-00_36_55
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