---

Step * 1 1 1 1 of Lemma not-not-p-or-not-p-example


1. P : ℙ
2. ¬(P ∨ (¬P))
⊢ ¬P
BY
{ (D 0 THEN Auto) }

---

Latex:

---

Latex:

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


By

---

Latex:
(D  0  THEN  Auto)

---

Home Index