Nuprl Lemma : es-interface-or_wf

[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 unfolded in proof :  uall: [x:A]. B[x] member: t ∈ T es-interface-or: (X Y) so_lambda: λ2y.t[x; y] subtype_rel: A ⊆B so_apply: x[s1;s2]

Latex:
\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: 2016_05_16-PM-10_41_08
Last ObjectModification: 2015_12_29-AM-10_52_35

Theory : event-ordering


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