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Step * of Lemma is-list-if-has-value-hv-prp

∀[t:ListLike]. ((t)↓ ∈ ℙ)
BY
{ ((D 0 THENA Auto)
   THEN RepUR ``is-list-if-has-value corec`` (-1)
   THEN (With ⌜1⌝ (D (-1))⋅ THENA Auto)
   THEN AllReduce
   THEN RevHypSubst (-1) 0
   THEN Auto) }

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Latex:

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Latex:
\mforall{}[t:ListLike].  ((t)\mdownarrow{}  \mmember{}  \mBbbP{})


By

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Latex:
((D  0  THENA  Auto)
  THEN  RepUR  ``is-list-if-has-value  corec``  (-1)
  THEN  (With  \mkleeneopen{}1\mkleeneclose{}  (D  (-1))\mcdot{}  THENA  Auto)
  THEN  AllReduce
  THEN  RevHypSubst  (-1)  0
  THEN  Auto)

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