Which of the following is not a sentence in a propositional logic:
A) Ford is a car.
B) If John is home then Mary is at work.
C) True.
D) Where is John?

Question

Quizplus · Accepted Answer

A sentence in propositional logic must have a clear truth value (either true or false) based on the proposition it conveys. Option D is a question and does not convey a proposition, therefore it is not a sentence in propositional logic. Options A and B convey clear propositions and can be assigned a truth value. Option C, although it only consists of the word "True," can be interpreted as a proposition that is always true.

Which of the Following Is Not a Sentence in a Propositional