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Question
The only statement among the following i.e., a tautology is ______.
Options
A ∧ (A ∨ B)
A ∨ (A ∧ B)
[A ∧ (A → B)] → B
B → [A ∧ (A → B)]
MCQ
Fill in the Blanks
Solution
The only statement among the following i.e., a tautology is [A ∧ (A → B)] → B.
Explanation:
[A ∧ (A → B)] → B
| A | B | A → B | A ∧ (A → B) | [A ∧ (A → B)] → B | |
| T | T | T | T | T | |
| T | F | F | F | T | |
| F | T | T | F | T | |
| F | F | T | F | T |
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Tautology, Contradiction, and Contingency
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