Step
*
of Lemma
rabs-of-nonneg
∀[x:ℝ]. |x| = x supposing r0 ≤ x
BY
{ (Auto THEN (RWO "rabs-as-rmax" 0 THENA Auto) THEN BLemma `rmax-req2` THEN Auto) }
1
1. x : ℝ
2. r0 ≤ x
⊢ -(x) ≤ x
Latex:
Latex:
\mforall{}[x:\mBbbR{}]. |x| = x supposing r0 \mleq{} x
By
Latex:
(Auto THEN (RWO "rabs-as-rmax" 0 THENA Auto) THEN BLemma `rmax-req2` THEN Auto)
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