Grelling-Nelson paradox

English

Etymology

Formulated in 1908 by Kurt Grelling and Leonard Nelson.

Proper noun

the Grelling-Nelson paradox

1. A semantic paradox of self-reference, where, supposing that "autological" means "self-describing" and "heterological" means "not self-describing", then "heterological" itself cannot be meaningfully classified as either of the two.

See also

• barber paradox
• Russell's paradox