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Q. When two statements are combined by using the phrase “if and only if”, the resulting compound statement is called …………………………………………..

Q. ’statement form from which the statement results by substituting a different simple statement for each different statement variable’ is called ……………………..

Q. _________ is the symbolic expression for ‘p and negation q’.

Q. An argument form is valid if and only if it’s expression in the form of a conditional statement is ……………

Q. “it is not the case that the antecedent is true and the consequent is false” is symbolized as……………………………………….

Q. A compound proposition in which simple propositions are combined using ‘and’ is called

Q. The constant symbol ‘ ’ stands for ________. ѵ

Q. If (x) ( H x Ͻ Mx ) is true, then (∃x ) ( H x . ~Mx ) is ___________

Q. Name the rule of replacement (P ≡ q)≡ [(p.q) v (~p.~q)]

Q. ‘Some fruits are ripe’ is symbolized as