Exercise · ZW-TRUTH-TABLE-003 · ★☆☆ Basic

With n propositions, how many possible assignments are there?

Choose one option.

Show answer
  • C. 2ⁿ

Explanation

Each proposition can be true or false, so with \(n\) propositions there are \(2^n\) assignments.

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Review the concept: Truth table

Let \(P_1,\ldots,P_n\) be atomic propositions. A truth table records the value of a formula for every assignment of them.

\[\left|\mathrm{Asig}(P_1,\ldots,P_n)\right|=2^n\]

More practice problems: truth table

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