VigorousCoast1785 VigorousCoast1785 30-05-2023 Mathematics contestada apply unit propagation on the formula p ∧ (¬p ∨ ¬q) ∧ (¬q ∨ r) ∧ (q ∨ ¬r) starting with an empty set u of literals. what are the resulting formulas f from the first three iterations?