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Step * 1 2 1 1 1 1 1 of Lemma cosine-exists


1. x : ℝ
2. i : ℕ
⊢ x^2 * i = |x|^2 * i
BY
{ (RWO "rnexp-mul<" 0 THEN Auto)⋅ }

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Latex:

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Latex:

1.  x  :  \mBbbR{}
2.  i  :  \mBbbN{}
\mvdash{}  x\^{}2  *  i  =  |x|\^{}2  *  i


By

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Latex:
(RWO  "rnexp-mul<"  0  THEN  Auto)\mcdot{}

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