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Question

If A is any statement, then which of the following is a tautology?

a.

A ∧ F

b.

A ∨ F

c.

A ∨ ¬A

d.

A ∧ T

Posted under Discrete Mathematics

Answer: (c).A ∨ ¬A

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Q. If A is any statement, then which of the following is a tautology?

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