Check all the statements that are true: A. A conditional is false when both premise and conclusion are false. | B. (p q) ^ (p q) is a contradiction. C. Inverse and converse are logically equivalent. D. It is possible to define disjunction using only negations and conjunction. E. Domain-restricted existential quantification is logically equivalent to the unrestricted existential quantification of a conditional. F. The negation of a conjunction is the disjunction of the negations. G. The contrapositive is the inverse of the converse. | H. (p q) V (p q) is a tautology. I. Domain-restricted universal quantification is logically equivalent to the unrestricted universal quantification of a conditional. J. A predicate is a proposition-valued function.