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Discrete Mathematics - Mathematical Logic

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11. Consider two well-formed formulas in propositional logic
F1 : P →˥P F2 : (P →˥P) v ( ˥P →)
Which of the following statement is correct?

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12. What can we correctly say about proposition P1:
P1 : (p v ˥q) ^ (q →r) v (r v p)

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13. (P v Q) ^ (P → R )^ (Q →S) is equivalent to

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14. The functionally complete set is

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15. (P v Q) ^ (P→R) ^ (Q → R) is equivalent to

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