Conventional Intension, [23]; [26], 7.

Converse, [127].

Converse Relation, Immediate Inference by, [149]–51.

Conversion by Contraposition, see [Contraposition].

Conversion by Limitation, [129].

Conversion by Negation, [134] n.

Conversion of Propositions, [126]–130; legitimacy of the process, [130]–2; attempts to reduce conversion to syllogistic form, [152]; illustrated by Euler’s diagrams, [160], 1; how 541 affected by the existential import of propositions, [223]–7; of conditionals, [259], 60; of hypotheticals, [268], 9; is conversion a process of inference, [422], 3; not to be based exclusively on the three laws of thought, [465], 6; of complex propositions, [489], 90.

Conversion per accidens, [128], 9.

Conversio pura et impura, [129] n.

Conversio Syllogismi, [322].