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Step * of Lemma req*_weakening

∀[x,y:ℝ*].  x = y supposing x = y ∈ ℝ*
BY
{ (Auto THEN (RWO "-1" 0 THEN Auto) THEN D 0 With ⌜0⌝  THEN Auto) }

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Latex:

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Latex:
\mforall{}[x,y:\mBbbR{}*].    x  =  y  supposing  x  =  y


By

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Latex:
(Auto  THEN  (RWO  "-1"  0  THEN  Auto)  THEN  D  0  With  \mkleeneopen{}0\mkleeneclose{}    THEN  Auto)

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