1 .		A formula in which negation signs apply only to simple predicates we call a -form formula. [Hint]
2 .		The symbolization ( x)(x x) is the formula for the general subject-predicate proposition known as the proposition. [Hint]
3 .		We can work best with formulas in which the sign applies only to simple predicates—or does not appear at all. [Hint]
4 .		The two types of general propositions are A and I. [Hint]
5 .		The Greek letters and are used to represent any (s) whatsoever. [Hint]