Step
*
2
of Lemma
in-rat-cube-face
1. v6 : ℚ
2. v : ℝ
3. v5 : ℚ
4. rat2real(v6) ≤ v
5. v ≤ rat2real(v6)
6. v5 ≤ v6
⊢ rat2real(v5) ≤ v
BY
{ (RWO "4<" 0 THEN EAuto 1) }
Latex:
Latex:
1. v6 : \mBbbQ{}
2. v : \mBbbR{}
3. v5 : \mBbbQ{}
4. rat2real(v6) \mleq{} v
5. v \mleq{} rat2real(v6)
6. v5 \mleq{} v6
\mvdash{} rat2real(v5) \mleq{} v
By
Latex:
(RWO "4<" 0 THEN EAuto 1)
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