more from Peter Simons

Single Idea 12832

[catalogued under 4. Formal Logic / G. Formal Mereology / 1. Mereology]

Full Idea

The 'complement' of each individual in mereology is the rest of the Universe outside it, that is U - x, but written as x-bar [x with a horizontal bar above it].

Gist of Idea

Complement: the rest of the Universe apart from some individual, written x-bar


Peter Simons (Parts [1987], 1.1.10)

Book Reference

Simons,Peter: 'Parts: a Study in Ontology' [OUP 1987], p.16

A Reaction

[Don't have a font for x-bar] See Idea 12831 for the 'Universe'. Simons suggest that the interest of this term is mainly historical and algebraic.

Related Idea

Idea 12831 Atom: an individual with no proper parts, written 'At x' [Simons]