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Step * 2 of Lemma isqrrrt


∃r:ℕ [(((r * r) ≤ 0) ∧ 0 < (r + 1) * (r + 1))]
BY
{ (InstConcl [⌜0⌝]⋅ THEN Auto) }

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Latex:

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Latex:

\mexists{}r:\mBbbN{}  [(((r  *  r)  \mleq{}  0)  \mwedge{}  0  <  (r  +  1)  *  (r  +  1))]


By

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Latex:
(InstConcl  [\mkleeneopen{}0\mkleeneclose{}]\mcdot{}  THEN  Auto)

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