Prolog

Hello World in Prolog

Every programming journey starts with Hello World. Let’s write our first Prolog program and get our first taste of logic programming.

The Code

Create a file named hello.pl:

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:- write( …

Variables and Types in Prolog

Prolog’s data model is radically different from mainstream languages. There are no typed declarations, no assignment statements, and no primitive/object divide. Instead, everything is a term, …