Nuprl Lemma : lookup-list-map-find_wf

[Key,Value:Type]. ∀[deqKey:EqDecider(Key)]. ∀[key:Key]. ∀[m:lookup-list-map-type(Key;Value)].
  (lookup-list-map-find(deqKey;key;m) ∈ Value?)


Proof




Definitions occuring in Statement :  lookup-list-map-find: lookup-list-map-find(deqKey;key;m) lookup-list-map-type: lookup-list-map-type(Key;Value) deq: EqDecider(T) uall: [x:A]. B[x] unit: Unit member: t ∈ T union: left right universe: Type
Lemmas :  apply-alist_wf lookup-list-map-type_wf deq_wf
\mforall{}[Key,Value:Type].  \mforall{}[deqKey:EqDecider(Key)].  \mforall{}[key:Key].  \mforall{}[m:lookup-list-map-type(Key;Value)].
    (lookup-list-map-find(deqKey;key;m)  \mmember{}  Value?)



Date html generated: 2015_07_17-AM-08_23_47
Last ObjectModification: 2015_04_02-PM-05_44_42

Home Index