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Step * 1 2 1 1 2 1 of Lemma equipollent-nat-rationals


1. ℕ+ ~ {1...}
⊢ ℕ × ℕ ~ ℕ × {1...}
BY
{ (RWO "equipollent-int_upper-nat" 0 THEN Auto) }

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Latex:

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Latex:

1.  \mBbbN{}\msupplus{}  \msim{}  \{1...\}
\mvdash{}  \mBbbN{}  \mtimes{}  \mBbbN{}  \msim{}  \mBbbN{}  \mtimes{}  \{1...\}


By

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Latex:
(RWO  "equipollent-int\_upper-nat"  0  THEN  Auto)

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