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Step * of Lemma single-bag-append-nil

∀[a:Top]. ([a] + [] ~ [a])
BY
{ (Auto THEN RepUR ``bag-append`` 0 THEN Auto) }

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Latex:

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Latex:
\mforall{}[a:Top].  ([a]  +  []  \msim{}  [a])


By

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Latex:
(Auto  THEN  RepUR  ``bag-append``  0  THEN  Auto)

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