Step * of Lemma squash_elim

[P:ℙ]. (SqStable(P)  (↓⇐⇒ P))
BY
(Unfold `sq_stable` THEN Auto) }


Latex:


Latex:
\mforall{}[P:\mBbbP{}].  (SqStable(P)  {}\mRightarrow{}  (\mdownarrow{}P  \mLeftarrow{}{}\mRightarrow{}  P))


By


Latex:
(Unfold  `sq\_stable`  0  THEN  Auto)




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