Step
*
1
3
1
1
of Lemma
rat-int-bound_wf
1. q : ℚ
2. v1 : ℤ
3. v2 : ℚ
4. ¬(v2 = 0 ∈ ℚ)
5. 0 ≤ v2
6. v2 < 1
7. q = (v1 + v2) ∈ ℚ
8. rat-int-part(q) = <v1, v2> ∈ {p:ℤ × {r:ℚ| (0 ≤ r) ∧ r < 1} | let x,r = p in q = (x + r) ∈ ℚ}
⊢ 0 < v2
BY
{ ((RWO "qle-iff" 5 THENA Auto) THEN D 5 THEN Auto) }
Latex:
Latex:
1. q : \mBbbQ{}
2. v1 : \mBbbZ{}
3. v2 : \mBbbQ{}
4. \mneg{}(v2 = 0)
5. 0 \mleq{} v2
6. v2 < 1
7. q = (v1 + v2)
8. rat-int-part(q) = <v1, v2>
\mvdash{} 0 < v2
By
Latex:
((RWO "qle-iff" 5 THENA Auto) THEN D 5 THEN Auto)
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