Nuprl Lemma : disjoint-union-class_wf

[Info,A,B:Type]. ∀[X:EClass(A)]. ∀[Y:EClass(B)].  (X Y ∈ EClass(A B))


Proof




Definitions occuring in Statement :  disjoint-union-class: Y eclass: EClass(A[eo; e]) uall: [x:A]. B[x] member: t ∈ T union: left right universe: Type
Lemmas :  simple-comb-2_wf bag-null_wf bool_wf eqtt_to_assert assert-bag-null bag-map_wf eqff_to_assert equal_wf bool_cases_sqequal subtype_base_sq bool_subtype_base assert-bnot equal-wf-T-base bag_wf eclass_wf es-E_wf event-ordering+_subtype event-ordering+_wf

Latex:
\mforall{}[Info,A,B:Type].  \mforall{}[X:EClass(A)].  \mforall{}[Y:EClass(B)].    (X  +  Y  \mmember{}  EClass(A  +  B))



Date html generated: 2015_07_22-PM-00_14_21
Last ObjectModification: 2015_01_28-AM-10_45_37

Home Index