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truth table

A table listing a sentence's truth value on every possible valuation.

A truth table has one row per valuation of the sentence letters involved (2ⁿ rows for n letters) and a column for each sentence or subsentence, giving its truth value on that row.

Examples

  • A truth table for P ∨ Q has four rows, and the disjunction is false on exactly one of them.

See also

valuation characteristic truth table
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