more from Max J. Cresswell

### Single Idea 14974

#### [catalogued under 8. Modes of Existence / A. Relations / 4. Formal Relations / a. Types of relation]

Full Idea

A relation is 'Euclidean' if aRb and aRc imply bRc.

Gist of Idea

A relation is 'Euclidean' if aRb and aRc imply bRc

Source

Max J. Cresswell (Modal Logic [2001], 7.1.2)

Book Reference

'Blackwell Guide to Philosophical Logic', ed/tr. Goble,Lou [Blackwell 2001], p.141

A Reaction

If a thing has a relation to two separate things, then those two things will also have that relation between them. If I am in the same family as Jim and as Jill, then Jim and Jill are in the same family.