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2. Prolog syntax and semantics - Wikipedia

   en.wikipedia.org/wiki/Prolog_syntax_and_semantics

   Prolog is dynamically typed. It has a single data type, the term, which has several subtypes: atoms, numbers, variables and compound terms. An atom is a general-purpose name with no inherent meaning. It is composed of a sequence of characters that is parsed by the Prolog reader as a single unit.

3. List of PDF software - Wikipedia

   en.wikipedia.org/wiki/List_of_PDF_software

   Default PDF and file viewer for GNOME; replaces GPdf. Supports addition and removal (since v3.14), of basic text note annotations. CUPS: Apache License 2.0: No No No Yes Printing system can render any document to a PDF file, thus any Linux program with print capability can produce PDF files Pdftk: GPLv2: No Yes Yes

4. Prolog - Wikipedia

   en.wikipedia.org/wiki/Prolog

   Prolog is a logic programming language that has its origins in artificial intelligence, automated theorem proving and computational linguistics. [1] [2] [3]Prolog has its roots in first-order logic, a formal logic, and unlike many other programming languages, Prolog is intended primarily as a declarative programming language: the program is a set of facts and rules, which define relations.

5. Comparison of Prolog implementations - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_Prolog...

   The following Comparison of Prolog implementations provides a reference for the relative feature sets and performance of different implementations of the Prolog computer programming language. A comprehensive discussion of the most significant Prolog systems is presented in an article published in the 50-years of Prolog anniversary issue of the ...

6. Logic programming - Wikipedia

   en.wikipedia.org/wiki/Logic_programming

   Ciao Prolog, for example, transforms functional syntax into relational form and executes the resulting logic program using the standard Prolog execution strategy. [29] Moreover, the same transformation can be used to execute nested relations that are not functional.

7. Visual Prolog - Wikipedia

   en.wikipedia.org/wiki/Visual_Prolog

   Visual Prolog, previously known as PDC Prolog and Turbo Prolog, is a strongly typed object-oriented extension of Prolog. It was marketed by Borland as Turbo Prolog (version 1.0 in 1986 and version 2.0 in 1988). It is now developed and marketed by the Danish firm PDC that originally created it.

8. Cut (logic programming) - Wikipedia

   en.wikipedia.org/wiki/Cut_(logic_programming)

   This is called a green cut operator.The ! tells the interpreter to stop looking for alternatives; however, if gotmoney(X) fails it will check the second rule. Although checking for gotmoney(X) in the second rule may appear redundant since Prolog's appearance is dependent on gotmoney(X) failing before, otherwise the second rule would not be evaluated in the first place.

9. XSB - Wikipedia

   en.wikipedia.org/wiki/XSB

   XSB is the name of a dialect of the Prolog programming language and its implementation developed at Stony Brook University in collaboration with the Katholieke Universiteit Leuven, the New University of Lisbon, Uppsala University and software vendor XSB, Inc. XSB extends Prolog with tabled resolution and HiLog.