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Step * of Lemma decidable__equal_unit

∀x,y:Unit.  Dec(x = y ∈ Unit)
BY
{ (Auto THEN Unfold `decidable` 0 THEN OrLeft THEN Auto) }

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Latex:

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Latex:
\mforall{}x,y:Unit.    Dec(x  =  y)


By

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Latex:
(Auto  THEN  Unfold  `decidable`  0  THEN  OrLeft  THEN  Auto)

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