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Step * of Lemma cbva-sqequal0

∀[a:Base]. let x ⟵ a in 0 ~ 0 supposing has-valueall(a)
BY
{ (Auto THEN Unfold `callbyvalueall` 0 THEN RW (HigherC CallByValue2C) 0⋅ THEN Try (Fold `has-valueall` 0) THEN Auto) }

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Latex:

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Latex:
\mforall{}[a:Base].  let  x  \mleftarrow{}{}  a  in  0  \msim{}  0  supposing  has-valueall(a)


By

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Latex:
(Auto
  THEN  Unfold  `callbyvalueall`  0
  THEN  RW  (HigherC  CallByValue2C)  0\mcdot{}
  THEN  Try  (Fold  `has-valueall`  0)
  THEN  Auto)

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