Nuprl Lemma : null-class-property
∀[Info,T:Type]. ∀[es:EO+(Info)]. ∀[e:E]. ∀[v:T]. uiff(v ∈ Null(e);False)
Proof
Definitions occuring in Statement :
null-class: Null,
classrel: v ∈ X(e),
event-ordering+: EO+(Info),
es-E: E,
uiff: uiff(P;Q),
uall: ∀[x:A]. B[x],
false: False,
universe: Type
Lemmas :
bag-member-empty-iff,
classrel_wf,
null-class_wf,
false_wf,
es-E_wf,
event-ordering+_cumulative2,
event-ordering+_wf
Latex:
\mforall{}[Info,T:Type]. \mforall{}[es:EO+(Info)]. \mforall{}[e:E]. \mforall{}[v:T]. uiff(v \mmember{} Null(e);False)
Date html generated:
2015_07_21-PM-03_04_03
Last ObjectModification:
2015_01_27-PM-07_24_06
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