Step
*
of Lemma
rnexp-positive
∀x:ℝ. ((r0 < x)
⇒ (∀n:ℕ. (r0 < x^n)))
BY
{ ((InductionOnNat THEN Auto) THEN RWO "rnexp-req" 0 THEN Auto THEN AutoSplit THEN EAuto 1) }
1
1. x : ℝ
2. r0 < x
3. n : ℤ
4. n ≠ 0
5. [%2] : 0 < n
6. r0 < x^n - 1
⊢ r0 < (x * x^n - 1)
Latex:
Latex:
\mforall{}x:\mBbbR{}. ((r0 < x) {}\mRightarrow{} (\mforall{}n:\mBbbN{}. (r0 < x\^{}n)))
By
Latex:
((InductionOnNat THEN Auto) THEN RWO "rnexp-req" 0 THEN Auto THEN AutoSplit THEN EAuto 1)
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