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Step * of Lemma stable__reqmatrix

∀[a,b:ℕ]. ∀[X,Y:ℝ(a × b)].  Stable{X ≡ Y}
BY
{ (Auto THEN Unfold `reqmatrix` 0 THEN RepeatFor 2 ((BLemma `stable__all` THEN Auto))) }

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Latex:

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Latex:
\mforall{}[a,b:\mBbbN{}].  \mforall{}[X,Y:\mBbbR{}(a  \mtimes{}  b)].    Stable\{X  \mequiv{}  Y\}


By

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Latex:
(Auto  THEN  Unfold  `reqmatrix`  0  THEN  RepeatFor  2  ((BLemma  `stable\_\_all`  THEN  Auto)))

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