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Step * 1 of Lemma equipollent-product-one

.....assertion..... 
ℕ1 ~ Top
BY
{ TACTIC:(RWO "top-equipollent-unit" 0 THEN Auto) }

1
ℕ1 ~ Unit

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Latex:

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Latex:
.....assertion..... 
\mBbbN{}1  \msim{}  Top


By

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Latex:
TACTIC:(RWO  "top-equipollent-unit"  0  THEN  Auto)

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