Re: [stack] language hierarchy
"Christopher Diggins" <[email protected]>
| Newsgroups | gmane.comp.lang.concatenative |
|---|---|
| Message-ID | <[email protected]> |
On Dec 11, 2007 12:28 PM, John Cowan <[email protected]> wrote: > Christopher Diggins scripsit: > > > I am familiar with Y but not Z. How is Z defined? > > http://en.wikipedia.org/wiki/Anonymous_recursion tells the tale. Ah, "\x.(xx)" or "dup apply". It seems though that they are simply assigning an arbitary name to that combinator than specifically saying it is the "Z" combinator. AFAICT Z is not a commonly used name for the combinator. I have seen many references to it as the "m" combinator, or the mockingbird combinator. (http://www.angelfire.com/tx4/cus/combinator/birds.html) - Christopher