Mathematics · Mathematical Reasoning - Mathematical Logic
Which one of the following statement formulas is a tautology?
- 1p ∨ (p ∧ q)
- 2p ∧ (p ∨ q)
- 3q → (p ∧ (p → q))
- 4(p ∧ (p → q)) → q✓
Correct answer
(p ∧ (p → q)) → q
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