ABSTRACT
A judgment or belief when expressed in language is commonly called a proposition. Implication and inferribility are correlative terms—to say that certain conclusions are inferrible from certain premises, is equivalent to saying that those premises imply those conclusions. This chapter explains the consideration of the main types of proposition and their chief implications. The biological advantages of purely intellectual or imaginary experiments, as distinguished from actual trial-and-error experiments, are obvious in all cases in which the actual experiment might prove injurious or fatal. Subjects and predicates are called the terms of the judgment. Judgments and propositions are of varying degrees of complexity. The more complex ones involve three, four, or even more terms. In fact, the more complex propositions are best treated as composed of simpler propositions, related in certain ways, just as the simpler propositions are composed of terms.
