Step
*
of Lemma
rabs-positive
∀x:ℝ. (x ≠ r0
⇒ rpositive(|x|))
BY
{ ((RWO "rabs-as-rmax" 0 THEN Auto) THEN (FLemma `rneq-zero` [-1] THENA Auto) THEN BLemma `rmax-positive` THEN Auto) }
Latex:
Latex:
\mforall{}x:\mBbbR{}. (x \mneq{} r0 {}\mRightarrow{} rpositive(|x|))
By
Latex:
((RWO "rabs-as-rmax" 0 THEN Auto)
THEN (FLemma `rneq-zero` [-1] THENA Auto)
THEN BLemma `rmax-positive`
THEN Auto)
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