---

Step * of Lemma not-not-excluded-middle

∀P:ℙ. (¬¬(P ∨ (¬P)))
BY
{ (Auto THEN (D 0 THENA Auto) THEN RWO "not_over_or" (-1) THEN Auto) }

---

Latex:

---

Latex:
\mforall{}P:\mBbbP{}.  (\mneg{}\mneg{}(P  \mvee{}  (\mneg{}P)))


By

---

Latex:
(Auto  THEN  (D  0  THENA  Auto)  THEN  RWO  "not\_over\_or"  (-1)  THEN  Auto)

---

Home Index