• (Fill in the blanks) A tautology is a proposition which • A contradiction is a proposition which The contrapositive of the conditional P = Qis the conditional True or False? The contrapositive of P = Q is logically equivalent to P → Q. • The converse of the conditional P = Qis the conditional The converse of P → Qis always logically equivalent to P = Q. The negation of the conditional P → Q is the proposition • State de Morgan's laws for propositions P and Q: ¬(P V Q) → -(PA Q) + xercises 1.1 Express each of the following statements in the "If ..., then..." form. There are many possibl correct answers. (a) You must eat your dinner if you want to grow. (b) Being a multiple of 12 is a sufficient condition for a number to be even. (c) It is necessary for you to pass your exams in order for you to obtain a degree. (d) A triangle is equilateral only if all its sides have the same length.

Q: (c) (рла) —г -r : -p

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