i. Translate ∀x[C(x) ∨ ∃y(C(y) ∧ F(x, y)] into English, where  C(x): x has a computer F(x, y): x and y are friends The domain for both x and y is all students in your school. ii. Translate ∃x∀y∀z[(F(x, y)∧F(x, z)∧(y not the some as z)) −→ ¬F(y, z)] where; F(a, b): a and b are friends. The domain of x, y and z consists of all students in your school

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Q: a = (P→ (Q→R)) → ((P→Q) → (P→ R)) is a tautology or not ? Prove

A: Solution -

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Q: Consider the wffs: φ1 ≡ p1 → (p2 → (p3 → p4)) φ2 ≡ (p1 ∧ p2 ∧ p3) → p4 (a) Technically speaking,…

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