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Step * 1 of Lemma select-indices-aux_wf


1. A : Type
2. f : A ─→ 𝔹
⊢ select-indices-aux(f;[]) ∈ ℕ ─→ (ℕ List)
BY
{ Unfold `select-indices-aux` 0 THEN Reduce 0 }

1
1. A : Type
2. f : A ─→ 𝔹
⊢ λn.[] ∈ ℕ ─→ (ℕ List)

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Latex:

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Latex:

1.  A  :  Type
2.  f  :  A  {}\mrightarrow{}  \mBbbB{}
\mvdash{}  select-indices-aux(f;[])  \mmember{}  \mBbbN{}  {}\mrightarrow{}  (\mBbbN{}  List)


By

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Latex:
Unfold  `select-indices-aux`  0  THEN  Reduce  0

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