{ [Info:Type]. [es:EO+(Info)]. [A,B:Type]. [Ia1,Ia2:EClass(A)].
  [Ib1,Ib2:EClass(B)]. [g1:E(Ib1)  E(Ia1)]. [g2:E(Ib2)  E(Ia2)].
    ([{Ib1}? g1 : g2]  E([Ib1?Ib2])  E) }

{ Proof }



Definitions occuring in Statement :  es-E-interface: E(X) es-interface-predicate: {I} cond-class: [X?Y] in-eclass: e  X eclass: EClass(A[eo; e]) event-ordering+: EO+(Info) conditional: [P? f : g] es-E: E uall: [x:A]. B[x] member: t  T lambda: x.A[x] function: x:A  B[x] universe: Type bool-decider: bool-decider(b)
Definitions :  es-E-interface: E(X) member: t  T prop: so_lambda: x y.t[x; y] uall: [x:A]. B[x] uimplies: b supposing a all: x:A. B[x] so_apply: x[s1;s2] subtype: S  T
Lemmas :  conditional_wf-interface subtype_rel_function es-E-interface_wf cond-class_wf es-interface-top es-E_wf event-ordering+_inc subtype_rel_self assert_wf in-eclass_wf top_wf eclass_wf event-ordering+_wf

\mforall{}[Info:Type].  \mforall{}[es:EO+(Info)].  \mforall{}[A,B:Type].  \mforall{}[Ia1,Ia2:EClass(A)].  \mforall{}[Ib1,Ib2:EClass(B)].
\mforall{}[g1:E(Ib1)  {}\mrightarrow{}  E(Ia1)].  \mforall{}[g2:E(Ib2)  {}\mrightarrow{}  E(Ia2)].
    ([\{Ib1\}?  g1  :  g2]  \mmember{}  E([Ib1?Ib2])  {}\mrightarrow{}  E)


Date html generated: 2011_08_16-PM-05_57_01
Last ObjectModification: 2011_06_20-AM-01_39_50

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