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Step * of Lemma rmin-req-rminus-rmax

∀[x,y:ℝ].  (rmin(x;y) = -(rmax(-(x);-(y))))
BY
{ (Auto⋅ THEN RWW "rminus-rmax rminus-rminus" 0 THEN Auto) }

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Latex:

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


By

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Latex:
(Auto\mcdot{}  THEN  RWW  "rminus-rmax  rminus-rminus"  0  THEN  Auto)

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