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Step * 1 1 1 of Lemma rev_app_nil_lemma


1. bs : Top@i
⊢ bs ~ bs
BY
{ Try SqEqCD }

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Latex:

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Latex:

1.  bs  :  Top@i
\mvdash{}  bs  \msim{}  bs


By

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Latex:
Try  SqEqCD

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