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Step * of Lemma coterm-ext

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∀[opr:Type]. coterm(opr) ≡ coterm-fun(opr;coterm(opr))
BY
{ (Intros THEN (InstLemma `corec-ext` [⌜λ2T.coterm-fun(opr;T)⌝]⋅ THENA Auto) THEN Fold `coterm` (-1) THEN Auto) }

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Latex:

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Latex:
No  Annotations
\mforall{}[opr:Type].  coterm(opr)  \mequiv{}  coterm-fun(opr;coterm(opr))


By

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Latex:
(Intros
  THEN  (InstLemma  `corec-ext`  [\mkleeneopen{}\mlambda{}\msubtwo{}T.coterm-fun(opr;T)\mkleeneclose{}]\mcdot{}  THENA  Auto)
  THEN  Fold  `coterm`  (-1)
  THEN  Auto)

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