Question

Difference between propositional logic and predicate logic in tabular form

Answer 1

In propositional logic, we use letters to symbolize entire propositions. Propositions are statements of the form "x is y" where x is a subject and y is a predicate. For example, "Socrates is a man" is a proposition and might be represented in propositional logic as "S".

In predicate logic, we symbolize subject and predicate separately. Logicians often use lowercase letters to symbolize subjects (or objects) and uppercase letter to symbolize predicates. For example, Socrates is a subject and might be represented in predicate logic as "s" while "man" is a predicate and might be represented as "M". If so, "Socrates is a man" would be represented "Ms".