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Step * of Lemma rmul-identity1

∀[x:ℝ]. ((r1 * x) = x)
BY
{ (Auto THEN RWO "rmul_comm" 0 THEN Auto) }

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Latex:

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Latex:
\mforall{}[x:\mBbbR{}].  ((r1  *  x)  =  x)


By

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Latex:
(Auto  THEN  RWO  "rmul\_comm"  0  THEN  Auto)

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