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Step * of Lemma quicksort-int-length

∀[L:ℤ List]. (||L|| = ||quicksort-int(L)|| ∈ ℤ)
BY
{ (Auto
   THEN (InstLemma `quicksort-int_wf` [⌜L⌝]⋅ THENA Auto)
   THEN DVarSets
   THEN Auto
   THEN FLemma `permutation-length` [-1]
   THEN Auto) }

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Latex:

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Latex:
\mforall{}[L:\mBbbZ{}  List].  (||L||  =  ||quicksort-int(L)||)


By

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Latex:
(Auto
  THEN  (InstLemma  `quicksort-int\_wf`  [\mkleeneopen{}L\mkleeneclose{}]\mcdot{}  THENA  Auto)
  THEN  DVarSets
  THEN  Auto
  THEN  FLemma  `permutation-length`  [-1]
  THEN  Auto)

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