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Step * 1 1 1 1 of Lemma atan-approx-property


1. k : ℕ
2. x : ℝ
3. N : ℕ+
4. |x| ≤ (r1/r(2))
5. |x^2| ≤ (r1/r(4))
⊢ |x * x| ≤ (r1/r(4))
BY
{ (RWO "rnexp2<" 0 THEN Auto) }

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Latex:

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Latex:

1.  k  :  \mBbbN{}
2.  x  :  \mBbbR{}
3.  N  :  \mBbbN{}\msupplus{}
4.  |x|  \mleq{}  (r1/r(2))
5.  |x\^{}2|  \mleq{}  (r1/r(4))
\mvdash{}  |x  *  x|  \mleq{}  (r1/r(4))


By

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Latex:
(RWO  "rnexp2<"  0  THEN  Auto)

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