Step
*
1
1
of Lemma
fact-non-decreasing
1. m : ℤ
2. m ≠ 0
3. 0 < m
4. ∀[n:ℕ]. ((n ≤ (m - 1))
⇒ ((n)! ≤ (m - 1)!))
5. n : ℕ
6. n ≤ m@i
7. n = 0 ∈ ℤ
⊢ ¬(m = 0 ∈ ℤ)
BY
{ Auto' }
Latex:
Latex:
1. m : \mBbbZ{}
2. m \mneq{} 0
3. 0 < m
4. \mforall{}[n:\mBbbN{}]. ((n \mleq{} (m - 1)) {}\mRightarrow{} ((n)! \mleq{} (m - 1)!))
5. n : \mBbbN{}
6. n \mleq{} m@i
7. n = 0
\mvdash{} \mneg{}(m = 0)
By
Latex:
Auto'
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