14 Prolog+CG (Ad)
Most of what we have said in this part has been generally applicable to most Prolog systems. We haven't said much that was specific to Prolog+CG. Exceptions have been, e.g.:
In most other Prolog systems, strings are enclosed in 'single quotes', lists are enclosed in [square brackets], and variables must start with an upper-case letter, and the two first characters of a variable can both be letters.
In this chapter, we will be looking at some more things that are specific to Prolog+CG. In particular, we will be looking at built-in primitive goals.
A list of primitive goals can be found by clicking the menu-item Windows -> Primitives in Prolog+CG. They are described in the Prolog+CG manual. If you need more help, you can read this.
We start by looking at some relational goals.
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