Step
*
1
of Lemma
super-fact-int-prod-exp
1. k : ℤ
2. 0 < k
⊢ ((k)! * Π(k - 1 - i^i + 1 | i < k - 1)) = Π(k - i^i + 1 | i < k) ∈ ℤ
BY
{ Subst' Π(k - i^i + 1 | i < k) ~ Π(k - i | i < k) * Π(k - i^i | i < k) 0 }
1
.....equality.....
1. k : ℤ
2. 0 < k
⊢ Π(k - i^i + 1 | i < k) ~ Π(k - i | i < k) * Π(k - i^i | i < k)
2
1. k : ℤ
2. 0 < k
⊢ ((k)! * Π(k - 1 - i^i + 1 | i < k - 1)) = (Π(k - i | i < k) * Π(k - i^i | i < k)) ∈ ℤ
Latex:
Latex:
1. k : \mBbbZ{}
2. 0 < k
\mvdash{} ((k)! * \mPi{}(k - 1 - i\^{}i + 1 | i < k - 1)) = \mPi{}(k - i\^{}i + 1 | i < k)
By
Latex:
Subst' \mPi{}(k - i\^{}i + 1 | i < k) \msim{} \mPi{}(k - i | i < k) * \mPi{}(k - i\^{}i | i < k) 0
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