Verbal Division, [443].
Verbal Propositions, [49]–52.
Wallis, Institutio Logicae, [322] n. ; [330].
Weakened Conclusion, [313], 14.
Weakened Syllogism, [313], 14.
Weaker Premiss, [289] n.
Welton, J., [182]; [183]; [243] n. ; [359] n.
Whately, R., [297] n. ; [323], 4; on the doctrine of reduction, [325]; on the dilemma, [365]; holds that all valid reasoning is reducible to syllogistic form, [387]; his definition of petitio principii, [425]; [433], 4.
Wolf, A., [216] n. ; [221]; [225] n. ; [229] n. ; [231] n.