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 …

Nov 22, 2012 · Prolog "or" operator, query Asked 13 years, 1 month ago Modified 12 years, 8 months ago Viewed 157k times

In Prolog, the "not" is an example of "negation as failure", but it is felt that \+ will make it clearer to the programmer just what precisely is being asserted in any given rule. So you CAN use "not" …

Nov 10, 2009 · What does \+ mean in Prolog? Asked 16 years, 2 months ago Modified 7 years, 9 months ago Viewed 62k times

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 …

Jun 13, 2010 · Hi Romain, thanks for the response! I've double and triple checked many times for anything in the buffer prior to the prolog (including hidden characters) but there simply isn't …

The SWI-Prolog build process put bin and lib under ~/bin and ~/lib Note: the -f flag disables loading the initialization ~/.plrc, and this could be necessary to get more 'strict control' over …

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'.

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 …

Jun 7, 2018 · I have to define a prolog program which gives the truth table for a logic formula like this: (a or non (b and c)) where the logic variables can only have true or false value, and the …