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Step * 1 1 of Lemma rnexp2-positive-iff

.....antecedent..... 
1. x : ℝ
2. r0 < x^2
⊢ r0^2 < |x|^2
BY
{ (RWO "rnexp0" 0 THEN Auto) }

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Latex:

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Latex:
.....antecedent..... 
1.  x  :  \mBbbR{}
2.  r0  <  x\^{}2
\mvdash{}  r0\^{}2  <  |x|\^{}2


By

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Latex:
(RWO  "rnexp0"  0  THEN  Auto)

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