A System of Logic was created in 1843.

A positive logic system will output true only when the input is true. A negative logic system will output true only when the input is false.

The NOT logic gate is an example of a negative logic system. That is, NOT( false ) will output true.

A positive logic system will output true only when the input is true. A negative logic system will output true only when the input is false.

The NOT logic gate is an example of a negative logic system. That is, NOT( false ) will output true.

AI uses syllogistic logic, which was first postulated by Aristotle. This logic is based on deductive reasoning.

The author of "A System of Logic" is John Stuart Mill. Published in 1843, this work is one of the most important contributions to the field of logic in the 19th century.