SWI-Prolog offers a comprehensive free Prolog environment. Since its start in 1987, SWI-Prolog development has been driven by the needs of real world applications. Create multiple pages of fences on your desktop and quickly swipe between them. To change to a different desktop page, just take your mouse cursor to the edge of your screen and click and drag. Then a new page of fences will be displayed. This feature provides greater control over how you can organize favorite programs, documents, websites and
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