DMGT R23 Exam Prep
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DMGT R23 Exam Prep
Sample questions with model answers
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Explain the connectives and their truth tables.
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Connectives include AND, OR, NOT, with respective truth tables defining their outputs.
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Construct the truth table for the following formula ¬(p ∨ q) ∨ (¬p ∧ ¬q).
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Truth table confirms the formula is a tautology.
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Define converse, inverse contra positive with an example.
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Converse: q → p; Inverse: ¬p → ¬q; Contrapositive: ¬q → ¬p.
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Prove that [(p → q) ∧ (q → r)] → (p → r) is a tautology.
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Proof uses truth table to show it holds true for all p, q, r.
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