---

Step * of Lemma qabs-positive

∀[r:ℚ]. 0 < |r| supposing ¬(r = 0 ∈ ℚ)
BY
{ (Auto THEN FLemma `qpositive-qabs` [-1]⋅ THEN Auto) }

1
1. r : ℚ
2. ¬(r = 0 ∈ ℚ)
3. ↑qpositive(|r|)
⊢ 0 < |r|

---

Latex:

---

Latex:
\mforall{}[r:\mBbbQ{}].  0  <  |r|  supposing  \mneg{}(r  =  0)


By

---

Latex:
(Auto  THEN  FLemma  `qpositive-qabs`  [-1]\mcdot{}  THEN  Auto)

---

Home Index