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Step * of Lemma geo-congruent-left-comm

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∀e:EuclideanPlane. ∀[a,b,c,d:Point].  ba ≅ cd supposing ab ≅ cd
BY
{ (Auto THEN D 1 THEN (Unhide THEN Auto) THEN InstLemma `geo-axioms-imply` [⌜e⌝]⋅ THEN Auto) }

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Latex:

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Latex:
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\mforall{}e:EuclideanPlane.  \mforall{}[a,b,c,d:Point].    ba  \mcong{}  cd  supposing  ab  \mcong{}  cd


By

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Latex:
(Auto  THEN  D  1  THEN  (Unhide  THEN  Auto)  THEN  InstLemma  `geo-axioms-imply`  [\mkleeneopen{}e\mkleeneclose{}]\mcdot{}  THEN  Auto)

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