Step
*
of Lemma
rnexp-even-nonneg
No Annotations
∀n:ℕ. (((n rem 2) = 0 ∈ ℤ)
⇒ (∀x:ℝ. (r0 ≤ x^n)))
BY
{ (Auto THEN Subst' n ~ 2 * (n ÷ 2) 0 THEN Auto) }
1
1. n : ℕ
2. (n rem 2) = 0 ∈ ℤ
3. x : ℝ
⊢ n = (2 * (n ÷ 2)) ∈ ℕ
2
1. n : ℕ
2. (n rem 2) = 0 ∈ ℤ
3. x : ℝ
⊢ r0 ≤ x^2 * (n ÷ 2)
Latex:
Latex:
No Annotations
\mforall{}n:\mBbbN{}. (((n rem 2) = 0) {}\mRightarrow{} (\mforall{}x:\mBbbR{}. (r0 \mleq{} x\^{}n)))
By
Latex:
(Auto THEN Subst' n \msim{} 2 * (n \mdiv{} 2) 0 THEN Auto)
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