(1) An indefinite proposition is one without the quantity sign. It usually may be classed as universal.
(2) An elliptical proposition is one in which the copula is suppressed.
(3) An individual proposition is one which has a singular subject. It is universal in content.
(4) Plurative propositions are those introduced by “most,” “a few” or some equivalent quantity sign. These are particular in meaning.
(5) Partitive propositions are particulars which imply a complementary opposite. These arise through the ambiguous use of “all-not,” “some” and “few.”
“All-not” sometimes means “no,” while at other times it may mean “not-all.” If the quantity sign means the latter, then it introduces a partitive proposition.
“Some” may mean “some only,” or “some at least.” The latter is the logical meaning. The former interpretation makes the proposition partitive. When “few” means “few only,” it is partitive in nature.
(6) Exceptive propositions are those introduced by such signs as “all except,” “all but,” “all save,” etc. They are universal only when the exceptions are mentioned.
(7) Exclusive propositions are those introduced by such words as “only,” “alone,” “none but” and “except.” In an exclusive the predicate and not the subject is distributed. Consequently the easiest way to make an exclusive logical is to interchange subject and predicate and call it an A.
(8) An inverted proposition is one where the predicate precedes the subject. Interchanging them gives the logical form.