which of the olowing sentences s equivalent to o va Which of

which of the olowing sentences s equivalent to (o va Which of the following sentences is equivalent to (p v q)?

Solution

The easiest method of finding the solution is simply drawing the truth tables.

1) p or q

The equivalent statements are the last three statements (option b, c, d). This can be easily found out by just keeping in mind the rule that p|p=p

2) not(p implies q)

Answer) none of the statements is equivalent. In this question also, apply the rule that p|p= p to simplify the options, make truth table of each option and then compare the result with the truth table of the question