(\ x . \ y . x y) y --> \ y . y y (WRONG)This problem arises because two distinct variables have the same name. The most common solution is to rename the bound variable using alpha conversion:
(\ x . \ y' . x y') y --> \ y' . y y'Another solution is to use de Bruijn notation. Note that the argument expression, y, contained a free variable. The whole expression above must therefore be notionally contained within the body of some lambda abstraction which binds y. If we never reduce inside the body of a lambda abstraction (as in reduction to weak head normal form) then name capture cannot occur.
Last updated: 1995-03-14
Name Daemon.Unix manual page: named(8). See also DNS.
Last updated: 1995-03-28
A Unix pipe with a filename created using the "mknod" command. Named pipes allow unrelated processes to communicate with each other whereas the normal (un-named) kind can only be used by processes which are parent and child or siblings (forked from the same parent).
Last updated: 1996-12-01
The process of mapping a name into its corresponding address.The Domain Name System is the system which does name resolution on the Internet.
Last updated: 1997-12-15
name service switchingDomain Name System
The set of all possible identifiers for some kind of object. From the definition of a set, all names in a namespace are unique and there is some rule to determine whether a potential name is an element of the set. For example, the Domain Name System includes rules for determining what constitutes a valid host name.
Last updated: 2008-12-09