Step
*
of Lemma
fshift_increasing
∀[n:ℕ]. ∀[x:ℤ]. ∀[f:ℕn ⟶ ℤ]. (increasing(fshift(f;x);n + 1)) supposing (x < f 0 and 0 < n and increasing(f;n))
BY
{ (Unfolds ``increasing fshift`` 0
THEN Reduce 0
THEN Auto
THEN AutoSplit
THEN Subst' (i + 1) - 1 ~ (i - 1) + 1 0
THEN Auto) }
Latex:
Latex:
\mforall{}[n:\mBbbN{}]. \mforall{}[x:\mBbbZ{}]. \mforall{}[f:\mBbbN{}n {}\mrightarrow{} \mBbbZ{}].
(increasing(fshift(f;x);n + 1)) supposing (x < f 0 and 0 < n and increasing(f;n))
By
Latex:
(Unfolds ``increasing fshift`` 0
THEN Reduce 0
THEN Auto
THEN AutoSplit
THEN Subst' (i + 1) - 1 \msim{} (i - 1) + 1 0
THEN Auto)
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