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Step * of Lemma minus-zero

-0 ~ 0
BY
{ (RWO "minus-one-mul" 0 THEN Reduce 0 THEN Auto) }

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Latex:

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Latex:
-0  \msim{}  0


By

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Latex:
(RWO  "minus-one-mul"  0  THEN  Reduce  0  THEN  Auto)

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