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Step * 1 of Lemma rabs_functionality


∀[x,y:ℝ].  rmax(x;-(x)) = rmax(y;-(y)) supposing x = y
BY
{ (Auto THEN RWO "-1" 0 THEN Auto) }

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Latex:

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Latex:

\mforall{}[x,y:\mBbbR{}].    rmax(x;-(x))  =  rmax(y;-(y))  supposing  x  =  y


By

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Latex:
(Auto  THEN  RWO  "-1"  0  THEN  Auto)

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