In many Prolog guides the following code is used to illustrate "negation by failure" in Prolog. However, those same tutorials and texts warn that t ...
In many Prolog guides the following code is used to illustrate "negation by failure" in Prolog. However, those same tutorials and texts warn that t ...
Negation as failure is usually considered impure. The Prolog interpreter needed for negation as failure must realize SLDNF which is an extension of SL ...
I'm representing a simple data-base in Clojure's core.logic. There are two predicates : page(p) and link(p,q). page(p) represents the existence of ...
I'm having an extremely hard time understanding the concept of negation as failure in Prolog compared to default negation in Answer Set Programming. C ...
Suppose we have the following program: If we run clingo to aquire the answer set of the program, we get We know the grounder will firstly instan ...
I'm programming in Prolog and sometimes I want to get a fail but instead I get an exception, which I can't understand why should be a difference betwe ...
I have a little question about the negation as failure in Prolog language: This is a question more theoretical than practical because I have clear ho ...
I want to know how Prolog solves this program: I googled "negation as failure" but I am confused! ...