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2. List of PDF software - Wikipedia

   en.wikipedia.org/wiki/List_of_PDF_software

   As with Adobe Acrobat, Nitro PDF Pro's reader is free; but unlike Adobe's free reader, Nitro's free reader allows PDF creation (via a virtual printer driver, or by specifying a filename in the reader's interface, or by drag-'n-drop of a file to Nitro PDF Reader's Windows desktop icon); Ghostscript not needed. PagePlus: Proprietary: No

3. 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.

4. 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 ...

5. SWI-Prolog - Wikipedia

   en.wikipedia.org/wiki/SWI-Prolog

   SWI-Prolog is a free implementation of the programming language Prolog, commonly used for teaching and semantic web applications. It has a rich set of features, libraries for constraint logic programming, multithreading, unit testing, GUI, interfacing to Java, ODBC and others, literate programming, a web server, SGML, RDF, RDFS, developer tools (including an IDE with a GUI debugger and GUI ...

6. 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.

7. Definite clause grammar - Wikipedia

   en.wikipedia.org/wiki/Definite_clause_grammar

   In this paper, he gave a formal description of metamorphosis grammars and some examples of programs that use them. Fernando Pereira and David Warren, two other early architects of Prolog, coined the term "definite clause grammar" and created the notation for DCGs that is used in Prolog today.

8. Category:Free software programmed in Prolog - Wikipedia

   en.wikipedia.org/wiki/Category:Free_software...

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9. Logic Programming Associates - Wikipedia

   en.wikipedia.org/wiki/Logic_Programming_Associates

   Logic Programming Associates (LPA) is a company specializing in logic programming and artificial intelligence software. LPA was founded in 1980 [1] and is widely known for its range of Prolog compilers, the Flex expert system toolkit and most recently, VisiRule.