eta conversion

English

Noun

eta conversion (countable and uncountable, plural eta conversions)

1. (computing theory) One of the three rewrite rules of lambda calculus, which expresses a sort of tautology about function application. The rule says that a lambda abstraction of the form $(\lambda x.(fx))$ may be rewritten as simply $f$, provided that x does not occur freely in f (considered by itself).

Coordinate terms

• alpha conversion
• beta reduction