Frege: Begriffsschrift

Frege's Begriffsschrift

Summary: http://www.rbjones.com/rbjpub/philos/bibliog/frege01.htm

wiki: http://en.wikipedia.org/wiki/Begriffsschrift


In The Foundations of Arithmetic (算術基礎 ), Frege devised 3

"fundamental principles:

1. always to separate sharply the psychological from the logical, the subjective from the objective;

2. never to ask for the meaning of a word in isolation, but only in the context of a proposition;

3. never to loose sight of the distinction between concept and object."

(tranlated by J. L. Austin)(1980)