For example, the compound statement P → (Q∨ ¬R) is built using the logical connectives →, ∨, and ¬ The truth or falsity of P → (Q∨ ¬R) depends on the truth or falsity of P, Q, and R A truthtableshows how the truth or falsity of a compound statement depends on the truth or falsity of the simple statements from which it'sPq=p (q) p−q = p(−q) http//wwwtigeralgebracom/drill/pq=p_ (q)/ pq=p (q) Equation is alway true Rearrange Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation pq (p (q))=0ICS 141 Discrete Mathematics I (Fall 14) 13 Propositional Equivalences Tautologies, Contradictions, and Contingencies A tautology is a compound proposition which is always true Logic Using Natural Deduction To Prove P Land Q To R Vdash P To R Lor Q To R Mathematics Stack Exchange P q q p truth table