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Step * of Lemma rminus-reverses-rless

∀x,y:ℝ.  ((x < y) ⇒ (-(y) < -(x)))
BY
{ (Auto THEN All (RWO "rless-iff-rpositive") THEN Auto) }

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Latex:

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Latex:
\mforall{}x,y:\mBbbR{}.    ((x  <  y)  {}\mRightarrow{}  (-(y)  <  -(x)))


By

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Latex:
(Auto  THEN  All  (RWO  "rless-iff-rpositive")  THEN  Auto)

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