Exercise · ZW-TAUTOLOGY-006 · ★★☆ Intermediate
Under which assignments is a tautology true?
Choose one option.
Show answer
- B. Under every assignment of values
Explanation
By definition, a tautology is true under every truth-value assignment to its variables.
Review the concept: Tautology
A compound proposition \(P\) is a tautology if it is true under every assignment of its components.
\[P\lor\neg P\equiv\top\]
More practice problems: tautology
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- ZW-TAUTOLOGY-009 Select the tautology.