Nuprl Lemma : or-class_wf
∀[Info,A,B:Type]. ∀[X:EClass(A)]. ∀[Y:EClass(B)]. (or-class(X;Y) ∈ EClass(A + B))
Proof
Definitions occuring in Statement :
or-class: or-class(X;Y),
eclass: EClass(A[eo; e]),
uall: ∀[x:A]. B[x],
member: t ∈ T,
union: left + right,
universe: Type
Lemmas :
parallel-class_wf,
inl-class_wf,
es-interface-subtype_rel2,
es-E_wf,
event-ordering+_subtype,
subtype_rel_sum,
inr-class_wf,
eclass_wf,
event-ordering+_wf
Latex:
\mforall{}[Info,A,B:Type]. \mforall{}[X:EClass(A)]. \mforall{}[Y:EClass(B)]. (or-class(X;Y) \mmember{} EClass(A + B))
Date html generated:
2015_07_20-PM-03_22_37
Last ObjectModification:
2015_01_27-PM-10_21_00
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