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Step * 1 1 1 of Lemma geo_seg2_mk_seg_lemma


1. b : Top
2. a : Top
⊢ b ~ b
BY
{ Try SqEqCD }

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Latex:

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Latex:

1.  b  :  Top
2.  a  :  Top
\mvdash{}  b  \msim{}  b


By

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Latex:
Try  SqEqCD

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