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Step * of Lemma not-is-exception-bottom

¬is-exception(⊥)
BY
{ ((D 0 THENA Auto) THEN Unfold `is-exception` -1 THEN FLemma `exception-not-bottom_1` [-1] THEN Auto) }

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Latex:

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Latex:
\mneg{}is-exception(\mbot{})


By

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Latex:
((D  0  THENA  Auto)  THEN  Unfold  `is-exception`  -1  THEN  FLemma  `exception-not-bottom\_1`  [-1]  THEN  Auto)

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