Nuprl Lemma : select-indices_wf

[A:Type]. ∀[f:A ─→ 𝔹]. ∀[L:A List].  (select-indices(f;L) ∈ ℕ List)


Proof




Definitions occuring in Statement :  select-indices: select-indices(f;L) list: List nat: bool: 𝔹 uall: [x:A]. B[x] member: t ∈ T function: x:A ─→ B[x] universe: Type
Lemmas :  select-indices-aux_wf false_wf le_wf list_wf bool_wf

Latex:
\mforall{}[A:Type].  \mforall{}[f:A  {}\mrightarrow{}  \mBbbB{}].  \mforall{}[L:A  List].    (select-indices(f;L)  \mmember{}  \mBbbN{}  List)



Date html generated: 2015_07_23-AM-11_59_59
Last ObjectModification: 2015_01_29-AM-07_42_51

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