prolog-arithmetic

What problem does it solve?

Prolog developers often struggle to reason about numeric expressions, operator semantics, and constraint solving. This skill clarifies is/2 evaluation, arithmetic comparisons, and CLP(FD) constraints, bridging symbolic terms and numerical results.

Core Features & Use Cases

• Explains how is/2 evaluates the right-hand side and unifies with the left-hand side, including groundness requirements.
• Demonstrates arithmetic comparison operators and CLP(FD) constraint propagation for bidirectional reasoning.
• Provides Peano arithmetic examples to illustrate purely logical definitions of numbers and their practical limits.

Quick Start

Try evaluating a Prolog arithmetic expression using is/2, for example set X is 3 + 4 and return X.