---

Step * 1 of Lemma stable__from_decidable


1. [P] : ℙ
2. P ∨ (¬P)
3. ¬¬P
⊢ P
BY
{ (D 2 THEN Auto) }

---

Latex:

---

Latex:

1.  [P]  :  \mBbbP{}
2.  P  \mvee{}  (\mneg{}P)
3.  \mneg{}\mneg{}P
\mvdash{}  P


By

---

Latex:
(D  2  THEN  Auto)

---

Home Index