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Step * of Lemma rdiv_wf

∀[x,y:ℝ].  (x/y) ∈ ℝ supposing y ≠ r0
BY
{ (Unfold `rdiv` 0 THEN Auto) }

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Latex:

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Latex:
\mforall{}[x,y:\mBbbR{}].    (x/y)  \mmember{}  \mBbbR{}  supposing  y  \mneq{}  r0


By

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Latex:
(Unfold  `rdiv`  0  THEN  Auto)

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