Search results
Results from the WOW.Com Content Network
The syntax and semantics of Prolog, a programming language, are the sets of rules that define how a Prolog program is written and how it is interpreted, respectively.The rules are laid out in ISO standard ISO/IEC 13211 [1] although there are differences in the Prolog implementations.
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.
Each such rule can be read as an implication: … meaning "If each is true, then is true". Logic programs compute the set of facts that are implied by their rules. Many implementations of Datalog, Prolog, and related languages add procedural features such as Prolog's cut operator or extra-logical features such as a foreign function interface.
Prolog implementations and their mutual influences. There are Prolog implementations that are radically different, with different syntax and different semantics (e.g. Visual Prolog) [2] and sub-communities have developed around different implementations.
However, nested syntax can be regarded as syntactic sugar for unnested syntax. 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.
Prolog: comma separated (conjunction), semicolon separated (disjunction), period terminated (clause) ... There is a wide variety of syntax styles for declaring ...
λProlog, also written lambda Prolog, is a logic programming language featuring polymorphic typing, modular programming, and higher-order programming.These extensions to Prolog are derived from the higher-order hereditary Harrop formulas used to justify the foundations of λProlog.
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 ...