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Step * 2 of Lemma rpositive-int


1. [n] : ℤ
2. 0 < n
⊢ ∃n@0:{ℕ+| 4 < 2 * n@0 * n}
BY
{ (With ⌜3⌝ (D 0)⋅ THEN Auto') }

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Latex:

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Latex:

1.  [n]  :  \mBbbZ{}
2.  0  <  n
\mvdash{}  \mexists{}n@0:\{\mBbbN{}\msupplus{}|  4  <  2  *  n@0  *  n\}


By

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Latex:
(With  \mkleeneopen{}3\mkleeneclose{}  (D  0)\mcdot{}  THEN  Auto')

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