Nuprl Lemma : outr-or-class
∀[Info,A,B:Type]. ∀[X:EClass(A)]. ∀[Y:EClass(B)]. (outr-class(or-class(X;Y)) = Y ∈ EClass(B))
Proof
Definitions occuring in Statement :
or-class: or-class(X;Y),
outr-class: outr-class(X),
eclass: EClass(A[eo; e]),
uall: ∀[x:A]. B[x],
universe: Type,
equal: s = t ∈ T
Lemmas :
eclass-ext,
es-E_wf,
event-ordering+_subtype,
outr-class_wf,
or-class_wf,
top_wf,
es-interface-subtype_rel2,
bag_wf,
eclass_wf,
event-ordering+_wf,
bag-separate-merge,
bag-subtype-list
Latex:
\mforall{}[Info,A,B:Type]. \mforall{}[X:EClass(A)]. \mforall{}[Y:EClass(B)]. (outr-class(or-class(X;Y)) = Y)
Date html generated:
2015_07_20-PM-03_23_10
Last ObjectModification:
2015_01_27-PM-10_19_29
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