Step
*
3
of Lemma
rmul_preserves_rneq
1. a : ℝ
2. b : ℝ
3. x : ℝ
4. x < r0
5. b < a
⊢ ((x * a) < (x * b)) ∨ ((x * b) < (x * a))
BY
{ (OrLeft THEN Auto) }
1
1. a : ℝ
2. b : ℝ
3. x : ℝ
4. x < r0
5. b < a
⊢ (x * a) < (x * b)
Latex:
Latex:
1. a : \mBbbR{}
2. b : \mBbbR{}
3. x : \mBbbR{}
4. x < r0
5. b < a
\mvdash{} ((x * a) < (x * b)) \mvee{} ((x * b) < (x * a))
By
Latex:
(OrLeft THEN Auto)
Home
Index