Step
*
1
1
of Lemma
rinv-rminus
1. x : ℝ
2. x ≠ r0
⊢ ((r(-1) * x) * r(-1) * rinv(x)) = r1
BY
{ (nRNorm 0⋅ THEN Auto) }
Latex:
Latex:
1. x : \mBbbR{}
2. x \mneq{} r0
\mvdash{} ((r(-1) * x) * r(-1) * rinv(x)) = r1
By
Latex:
(nRNorm 0\mcdot{} THEN Auto)
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