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Step * of Lemma rabs-difference-symmetry

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∀[x,y:ℝ].  (|x - y| = |y - x|)
BY
{ (Auto THEN RW (AddrC [1] (RevLemmaC `rabs-rminus` ) ) 0 THEN Auto) }

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Latex:

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


By

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Latex:
(Auto  THEN  RW  (AddrC  [1]  (RevLemmaC  `rabs-rminus`  )  )  0  THEN  Auto)

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