The two types of statements that are populate a Prolog database:

Prolog is a logic programming language where the procedure for how to compute the results is not specified. Instead, it requires programmers to define input and output through some formal communication method. Here, inference technique to compute the desired results.

One of the important aspects of Prolog is the intelligent database itself. The database of Prolog contains two kinds of statements:

1. Facts

2. Rules

Facts:

A fact is a predicate expression that makes a declaration about the problem domain. For example to state Joanne is the mother of Jake and Vern is the father of Joanne, the following facts can be added to the database...

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Chapter 2, Problem 36RQ

Chapter 2, Problem 38RQ

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