1. Using the predicate symbols shown and appropriate quantifiers, write each English language statement as a predicate wff. (The domain is the whole world) B(x): x is a ball R(X). X Is round S(x): x is a soccer ball a) All balls are round b) All soccer balls are round c) (Negate a) d) (Negate b) 2. What is the truth value of each of the following wifs in the interpretation where the domain consists of the integers, O(x) is "x is odd," L(x) is "x 9"? a. (ax)O(x) d.(VX)[L(x) V G(x)] T he domain IS Z, which is all integers 3. Prove that the wff is a valid argument 4. Consider the wff Find an interpretation to prove that this wff is not valid 5. Using predicate logic, prove the argument is valid. Use the predicate svmbols shown Every member of the board comes from industry or government. Everyone from government who has a law degree is in favor of the motion. John is not from industry, but he does have a law degree