Single Idea 9702

[catalogued under 4. Formal Logic / F. Set Theory ST / 2. Mechanics of Set Theory / b. Terminology of ST]

Full Idea

The 'domain' of a relation is the set of all objects that are members of ordered pairs that are members of the relation.

Gist of Idea

A 'domain' of a relation is the set of members of ordered pairs in the relation

Source

Herbert B. Enderton (A Mathematical Introduction to Logic (2nd) [2001], Ch.0)

Book Reference

Enderton,Herbert B.: 'A Mathematical Introduction to Logic' [Academic Press 2001], p.4

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