ABSTRACT
This chapter describes that propositions expressed in sentences. It finds that propositions may have any number of constituents and that these constituents may be combined in various ways. The chapter is concerned with the classification of propositions, due to Aristotle, which constitutes the traditional schedule. It shows that the traditional treatment of compound propositions was perfunctory. The traditional Logicians supposed that every proposition was analysable into subject and predicate, and must therefore be expressed with the help of the verb to be. Propositions are related on the one hand to the thinker who asserts them, and on the other to the facts which make these propositions true or false. The relation in which the thinker stands to the proposition is the relation of judging, or of believing, or of supposing, or of doubting. The traditional classification of propositions into: categorical, hypothetical, disjunctive, confuses the distinction between simple and compound propositions; the distinction between subject-predicate propositions and general propositions.
