Single Idea 12375

[catalogued under 26. Natural Theory / B. Natural Kinds / 6. Necessity of Kinds]

Full Idea

In each kind, whatever holds of something in itself and as such holds of it from necessity.

Gist of Idea

Whatever holds of a kind intrinsically holds of it necessarily


Aristotle (Posterior Analytics [c.327 BCE], 75a30)

Book Reference

Aristotle: 'Posterior Analytics (2nd ed)', ed/tr. Barnes,Jonathan [OUP 1993], p.12

A Reaction

This seems to confirm the view that essential properties are necessary, but it does not, of course, follow that all necessary properties are essential properties (e.g. trivial necessities are not essential).