Jan 25, 2021 · There are some special operators in Prolog, one of them is is, however, recently I came across the =:= operator and have no idea how it works. Can someone explain what this operator …

Nov 10, 2009 · What does \+ mean in Prolog? Asked 16 years ago Modified 7 years, 7 months ago Viewed 62k times

May 25, 2015 · The = "operator" in Prolog is actually a predicate (with infix notation) =/2 that succeeds when the two terms are unified. Thus X = 2 or 2 = X amount to the same thing, a goal to unify X with …

Jan 24, 2014 · 8 I want to know what @< means in Prolog? I encountered this symbol in this line of code while reading about the Bridge and Torch Problem:

Nov 22, 2012 · Prolog "or" operator, query Asked 13 years ago Modified 12 years, 6 months ago Viewed 157k times

Apr 16, 2013 · This is an effect of the remarkable "univ" operator, =../2, which is able to convert between Lisp-like lists and Prolog syntax, enabling you to do interesting construction and decomposition of …

May 17, 2010 · Is there a way to do an if in prolog, e.g. if a variable is 0, then to do some actions (write text to the terminal). An else isn't even needed, but I can't find any documentation of if.

SWI Prolog does keep a history of top-level bindings; type help. to go into the manual, then search for bindings or just navigate to section 2.8 of the manual, 'Reuse of top-level bindings'.

Oct 1, 2013 · The rules for Prolog functor names (identifiers) are the same as for Prolog atoms Functors are syntactic units that have a finite number of arguments ("arity"), and if a functor is supplied with …

Oct 19, 2008 · A language like Prolog is very fascinating, and it's worth learning for the sake of learning, but I have to wonder what class of real-world problems is best expressed and solved by such a …