Nuprl Lemma : fpf-single_wf2

[A,B:Type]. ∀[x:A]. ∀[v:B]. ∀[eqa:EqDecider(A)].  (x v ∈ a:A fp-> B(a)?Top)


Proof




Definitions occuring in Statement :  fpf-single: v fpf-cap: f(x)?z fpf: a:A fp-> B[a] deq: EqDecider(T) uall: [x:A]. B[x] top: Top member: t ∈ T universe: Type
Definitions unfolded in proof :  uall: [x:A]. B[x] member: t ∈ T so_lambda: λ2x.t[x] fpf-single: v fpf-cap: f(x)?z all: x:A. B[x] top: Top fpf: a:A fp-> B[a] prop: so_apply: x[s] subtype_rel: A ⊆B ifthenelse: if then else fi  implies:  Q bool: 𝔹
Lemmas referenced :  fpf-single_wf fpf_ap_pair_lemma ifthenelse_wf fpf-dom_wf cons_wf nil_wf l_member_wf top_wf equal_wf deq_wf
Rules used in proof :  sqequalSubstitution sqequalTransitivity computationStep sqequalReflexivity isect_memberFormation introduction cut thin instantiate extract_by_obid sqequalHypSubstitution isectElimination cumulativity hypothesisEquality sqequalRule lambdaEquality dependent_functionElimination isect_memberEquality voidElimination voidEquality hypothesis dependent_pairEquality functionExtensionality setEquality functionEquality universeEquality because_Cache applyEquality lambdaFormation unionElimination equalityTransitivity equalitySymmetry independent_functionElimination axiomEquality

Latex:
\mforall{}[A,B:Type].  \mforall{}[x:A].  \mforall{}[v:B].  \mforall{}[eqa:EqDecider(A)].    (x  :  v  \mmember{}  a:A  fp->  x  :  B(a)?Top)



Date html generated: 2018_05_21-PM-09_24_27
Last ObjectModification: 2018_05_19-PM-04_36_55

Theory : finite!partial!functions


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