Step
*
1
of Lemma
zip_length
1. T1 : Type
2. T2 : Type
⊢ ∀[bs:T2 List]. ((||zip([];bs)|| ≤ ||[]||) ∧ (||zip([];bs)|| ≤ ||bs||))
BY
{ (RecUnfold `zip` 0 THEN Reduce 0 THEN Auto') }
Latex:
Latex:
1. T1 : Type
2. T2 : Type
\mvdash{} \mforall{}[bs:T2 List]. ((||zip([];bs)|| \mleq{} ||[]||) \mwedge{} (||zip([];bs)|| \mleq{} ||bs||))
By
Latex:
(RecUnfold `zip` 0 THEN Reduce 0 THEN Auto')
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