*5. Some mathematicians use the symbol Į to mean nor. In other words, PI Q means “neither P nor Q." (a) Make a truth table for P Q. (b) Find a formula using only the connectives A, V, and ¬ that is...

Extracted text: *5. Some mathematicians use the symbol Į to mean nor. In other words, PI Q means “neither P nor Q." (a) Make a truth table for P Q. (b) Find a formula using only the connectives A, V, and ¬ that is equiv- alent to P 1 Q. (c) Find formulas using only the connective Į that are equivalent to -P, Pv Q, and PA Q.