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Step * of Lemma sq_stable__not

∀[P:ℙ]. SqStable(¬P)
BY
{ ((D 0 THENM Backchain   ``sq_stable__from_stable stable__not``) THEN Auto) }

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Latex:

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Latex:
\mforall{}[P:\mBbbP{}].  SqStable(\mneg{}P)


By

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Latex:
((D  0  THENM  Backchain      ``sq\_stable\_\_from\_stable  stable\_\_not``)  THEN  Auto)

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