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.
Radiant Logic was created in 1995.
Chronic Logic was created in 2001.
Polish Logic was created in 1967.
Essential Logic was created in 1978.
Media Logic was created in 1984.
The Logic of Sense was created in 1969.
The Logic Factory was created in 1993.
Cirrus Logic was created in 1981.
The Logic of Pleasure was created in 2008.
Dark Logic was created in 2002.
Logic Works was created in 1988.