Your Quiz Score is a measure of logic skills. Go to the to the Logic Skill Scale to examine the suggested areas for either review or more study. In logic, standard propositions are distinguished from nonstandard propositions according to the differences in quantity and quality. The Law of Identity holds that every sentence can be true or false. The Law of Excluded Middle states that all third parties are excluded in arbitration cases.
All deductive arguments are either probable or improbable.
A proposition is the meaning of any complete sentence. Some persons are not liars. No politician is trustworthy. All politicians are trustworthy. You ought not tell the truth.