more from Michael Dummett

### Single Idea 10537

#### [catalogued under 4. Formal Logic / F. Set Theory ST / 2. Mechanics of Set Theory / c. Basic theorems of ST]

Full Idea

A classic reduction is the class of ordered pairs <x,y> being reduced to the class of sets of the form {{x},{x,y}}.

Gist of Idea

The ordered pairs <x,y> can be reduced to the class of sets of the form {{x},{x,y}}

Source

Michael Dummett (Frege Philosophy of Language (2nd ed) [1973], Ch.14)

Book Reference

Dummett,Michael: 'Frege Philosophy of Language' [Duckworth 1981], p.477