Question

Which one of the following prepositional logic formula is true when exactly two of p,q and r are true?​

Answer 1

Step-by-step explanation:

In propositional logic, a propositional formula is a type of syntactic formula which is well formed and has a truth value. If the values of all variables in a propositional formula are given, it determines a unique truth value. ... (P AND NOT Q) IMPLIES (P OR Q)

Answer 2

Answer:

......

Step-by-step explanation:

We assume 'p' and 'q' to be TRUE. Therefore, 'r' is false becauseexactly two of 'p', 'q', and 'r' can be TRUE. p <--> q means if both 'p' and 'q' have same values then p <--> q is TRUE.