Problem 3 Recall that alt E A. P(x)" means that there is exactly one value x in the set A that makes P(x) true. a) Express 3x E A. PC)" using the other standard logical operations. You can use any combination of shorthand symbols (e.g. A) and words (c.g. "and"). Concentrate on capturing the meaning correctly. hints solution (b) State the negation of your answer to (a), moving all instances of "not" onto individual predicates. solution