Exercise · ZW-DISJUNCTION-005 · ★☆☆ Basic
P ∨ ¬P is an example of...
Choose one option.
Show answer
- C. Tautology
Explanation
\(P\lor\neg P\) is true in every case, because either \(P\) or \(\neg P\) is always true. That makes it a tautology.
Review the concept: Disjunction
Given propositions \(P\) and \(Q\), their inclusive disjunction is the proposition \(P\lor Q\).
\[P\lor Q\]
More practice problems: disjunction
- ZW-DISJUNCTION-001 P ∨ Q is true when...
- ZW-DISJUNCTION-002 If P and Q are false, P ∨ Q is...
- ZW-DISJUNCTION-003 Which symbol represents disjunction?
- ZW-DISJUNCTION-004 In inclusive disjunction, if P and Q are true, the result is...
- ZW-DISJUNCTION-006 P∨Q is false only when...
- ZW-DISJUNCTION-007 Inclusive disjunction allows...
- ZW-DISJUNCTION-008 P∨P is equivalent to...
- ZW-DISJUNCTION-009 Which assignment makes P∨ Q false?