Step
*
4
of Lemma
rem-sign
1. a : ℤ
2. n : ℤ-o
3. ¬(0 ≤ n)
4. (0 ≤ a)
⇒ (0 ≤ (a rem n))
5. 0 < a rem n
⇒ 0 < a
6. a rem n < 0@i
7. ¬a < 0
⊢ a < 0
BY
{ (InstLemma `rem_bounds_4` [⌜a⌝;⌜n⌝]⋅ THEN Auto) }
Latex:
Latex:
1. a : \mBbbZ{}
2. n : \mBbbZ{}\msupminus{}\msupzero{}
3. \mneg{}(0 \mleq{} n)
4. (0 \mleq{} a) {}\mRightarrow{} (0 \mleq{} (a rem n))
5. 0 < a rem n {}\mRightarrow{} 0 < a
6. a rem n < 0@i
7. \mneg{}a < 0
\mvdash{} a < 0
By
Latex:
(InstLemma `rem\_bounds\_4` [\mkleeneopen{}a\mkleeneclose{};\mkleeneopen{}n\mkleeneclose{}]\mcdot{} THEN Auto)
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