ABSTRACT
A predicate expression is heterological if and only if it doesn’t apply to itself, autological if and only if it does. For example, ‘is monosyllabic’, ‘is a French phrase’, and ‘is three words long’ are heterological, since they don’t apply to themselves, whereas ‘is polysyllabic’, ‘is an English phrase’, and ‘is four words long’ are autological.
