Inference, nature of, [413], 4; paradox of, [414], 5; conclusion in what sense different from premisses, [415]–20; limiting cases, [422], 3; is conversion a process of inference, [422], 3; is contraposition a process of inference, [422], 3; is syllogism a process of inference, [423]–30.

Infinitation, [133] n.

Infinite Name, [59]–61.

Infinite Proposition, [106], 7.

Integration, [201] n.

Intension of Names and Concepts, [22]; conventional, subjective, and objective, [23]–7; how related to extension, [31]–40; propositions in intension and extension, [177]–88.

Intensive Definition, [32]–5.

Intensively Verbal Proposition, [51] n.

Inverse, [139].

Inverse Problem, [525]–535.