War heroes, like Paul Revere, are well known. However, there are also war heroes that a lot of people have never heard of. Unheralded as they maybe, they are worthy of commendation for very few people are willing to endure what these 25 war heroes you probably never heard of have endured. Subscribe to List25.
Lambda calculus. Lambda calculus (also written as Î»-calculus) is a formal system in mathematical logic for expressing computation based on function abstraction and application using variable binding and substitution.
The lambda calculus. The lambda calculus consists of a language of lambda terms, which is defined by a certain formal syntax, and a set of transformation rules, which allow manipulation of the lambda terms. These transformation rules can be viewed as an equational theory or as an operational definition.