more from Graham Priest

### Single Idea 9684

#### [catalogued under 4. Formal Logic / F. Set Theory ST / 2. Mechanics of Set Theory / a. Symbols of ST]

Full Idea

Y - X indicates the 'relative complement' of X with respect to Y, that is, all the things in Y that are not in X.

Gist of Idea

Y - X is the 'relative complement' of X with respect to Y; the things in Y that are not in X

Source

Graham Priest (Intro to Non-Classical Logic (1st ed) [2001], 0.1.8)

Book Reference

Priest,Graham: 'Introduction to Non-Classical Logic' [CUP 2001], p.-6