Step
*
of Lemma
fact_add1
∀[n:ℕ]. ((n + 1)! ~ (n + 1) * (n)!)
BY
{ Auto }
Latex:
Latex:
\mforall{}[n:\mBbbN{}]. ((n + 1)! \msim{} (n + 1) * (n)!)
By
Latex:
Auto
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