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Step * of Lemma assoced_inversion

∀a,b:ℤ.  ((a ~ b) ⇒ (b ~ a))
BY
{ (Unfold `assoced` 0 THEN Auto) }

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Latex:

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Latex:
\mforall{}a,b:\mBbbZ{}.    ((a  \msim{}  b)  {}\mRightarrow{}  (b  \msim{}  a))


By

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Latex:
(Unfold  `assoced`  0  THEN  Auto)

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