How to check a truth table is a tautology

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Mathematics

Nevaeh Yates

2 April, 05:58

How to check a truth table is a tautology

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Dean Kidd · Answer 1

If a statement represents a tautology then the output value will be true regardless of the input value. Using a truth table is simple way to prove a tautology. Simply set up the truth statement for the statement being tested and then input a variety of values. The output will be true each time.