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Check the following formulas for satisfiability using the Horn’s formula satisfiability test. If you verify that...

Check the following formulas for satisfiability using the Horn’s formula satisfiability test. If you verify that the formula is satisfiable, then present a model for it. Justify.

3.1. ((P ∧ Q ∧ S) → P) ∧ ((Q ∧ R) → P) ∧ ((P ∧ S) → S)

3.2. Q ∧ S ∧ ¬W ∧ (¬P ∨ ¬Q ∨ V ∨ ¬S) ∧ (S ∨ ¬V) ∧ R

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