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Step * 1 1 1 of Lemma equipollent-product-one


ℕ1
BY
{ TACTIC:(UseWitness ⌜0⌝ ⋅ THEN Auto) }

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Latex:

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Latex:

\mBbbN{}1


By

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Latex:
TACTIC:(UseWitness  \mkleeneopen{}0\mkleeneclose{}  \mcdot{}  THEN  Auto)

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