Step
*
of Lemma
iroot_wf
∀[n:ℕ+]. ∀[x:ℕ]. (iroot(n;x) ∈ ℕ)
BY
{ TACTIC:(RepeatFor 2 ((D 0 THENA Auto)) THEN Unfold `iroot` 0 THEN ((GenConclAtAddr [2]) THENA Auto) THEN Auto) }
Latex:
Latex:
\mforall{}[n:\mBbbN{}\msupplus{}]. \mforall{}[x:\mBbbN{}]. (iroot(n;x) \mmember{} \mBbbN{})
By
Latex:
TACTIC:(RepeatFor 2 ((D 0 THENA Auto))
THEN Unfold `iroot` 0
THEN ((GenConclAtAddr [2]) THENA Auto)
THEN Auto)
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