{ [Info,A,B:Type]. [X:EClass(A)]. [Y:EClass(B)].
    ((X | Y)  EClass(one_or_both(A;B))) }

{ Proof }



Definitions occuring in Statement :  es-interface-or: (X | Y),  eclass: EClass(A[eo; e]),  uall: [x:A]. B[x],  member: t  T,  universe: Type,  one_or_both: one_or_both(A;B)
Definitions :  oob-apply: oob-apply(xs;ys),  bag: bag(T),  eclass-compose2: eclass-compose2(f;X;Y),  subtype: S  T,  event_ordering: EO,  es-E: E,  event-ordering+: EO+(Info),  lambda: x.A[x],  function: x:A  B[x],  all: x:A. B[x],  axiom: Ax,  es-interface-or: (X | Y),  one_or_both: Error :one_or_both,  universe: Type,  uall: [x:A]. B[x],  so_lambda: x y.t[x; y],  eclass: EClass(A[eo; e]),  isect: x:A. B[x],  member: t  T,  equal: s = t,  tactic: Error :tactic
Lemmas :  eclass_wf,  es-E_wf,  event-ordering+_inc,  event-ordering+_wf,  eclass-compose2_wf,  Error :one_or_both_wf,  oob-apply_wf,  bag_wf

\mforall{}[Info,A,B:Type].  \mforall{}[X:EClass(A)].  \mforall{}[Y:EClass(B)].    ((X  |  Y)  \mmember{}  EClass(one\_or\_both(A;B)))


Date html generated: 2011_08_16-PM-04_22_36
Last ObjectModification: 2011_06_20-AM-00_48_45

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