Sub-complementary Propositions, [132]; [143], 4; [161].
Subcontrary Opposition, [110]; [118]; how affected by the existential import of propositions, [227]–31.
Sub-division, [443].
Subject of a Proposition, [92]; how to be distinguished from the predicate, [96], 7.
Subjective distinctions of Modality, [86], 7; [90] n.
Subjective Extension, [30].
Subjective Intension, [23], 4; [26], 7; [29].
Substantial Terms, [12] n. ; [15] n.
Syllogism, [285]; its terms and propositions, [285]–7; its rules as ordinarily stated, [287]–9; corollaries from the rules, [289]–91; restatement of the rules, [291]; their dependence upon one another, [291]–3; statement of the independent rules, [293], 4; proof of the rule of quality, [294], 5; apparent exceptions to the rules, [295]–8; syllogisms with two singular premisses, [298], 9; is the ordinary syllogistic conclusion open to the charge of incompleteness, [300]; figures and moods, [309]–17; reduction of syllogisms, [318]–38; diagrammatic representation of syllogisms, [341]–6; syllogisms with quantified predicates, [378]–84; are all formal inferences reducible to ordinary syllogistic form, [384]–8; validity of syllogistic reasonings how far affected by the existential import of propositions, [390]–4; true conclusion obtainable from false premisses, [394]–6; numerical moods, [400]–3; syllogisms and immediate inferences, [423], 4; syllogistic reasoning and the charge of petitio principii, [424]–30. See also [Conditional Syllogism], [Figures of the Syllogism], &c.