Re: [Xsb-users] !

[Baoqiu C. <cb...@cs...>]

Matthew Amir Joseph Movafaghi writes:
 > what does ! mean on a line by itself... foo :- write('l'), !,...

It's a cut in Prolog.  A Google search on "cut Prolog" will give you
some links to web pages explaining that.  Here is one, and I think it's
good enough:

      http://www.cs.may.ie/~jpower/Courses/PROLOG/cut.html

- Baoqiu