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Step * of Lemma standard-fact-example1

∀[x,y,z:ℝ*].  x * y * z = z * y * x
BY
{ (Auto THEN ProveStandardStar THEN Auto) }

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Latex:

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Latex:
\mforall{}[x,y,z:\mBbbR{}*].    x  *  y  *  z  =  z  *  y  *  x


By

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Latex:
(Auto  THEN  ProveStandardStar  THEN  Auto)

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