Totum divisum, [441].
Traditional Scheme of Propositions, [79]; [92]–5; [234]–44.
Transitive Copula, [388].
Transversion, [127] n. ; [148] n. ; [260].
Trilemma, [363] n.
Twofold Negation, Principle of, [459].
Ueberweg, P., on opposition, [109] n. ; on conversion, [126] n. ; [133] n. ; [136] n. ; [151] n. ; on Euler’s diagrams, [162] n. ; on the existential import of propositions, [219] n. ; [255] n. ; on negative premisses, [297] n. ; [316]; form in which he gives the mnemonic verses, [322] n. ; on the reduction of Baroco and Bocardo, [323] n. ; [326]; [344] n. ; [349]; [352] n. ; [366] n. ; [369] n. ; [371] n. ; [424] n. ; [457] n.
Ultra-total distribution of the middle term, [376]–8.
Unconditionally Universal Propositions, [99].
Undistributed Middle, Fallacy of, [288]; involves indirectly illicit process of major or minor, [293]; apparent exception to the rule against undistributed middle, [297], 8.