Looping until a Condition is Satisfied To execute a set of instructions repeatedly until a given condition is met, many programming languages…
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prolog tutorial
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Examples of Files Example 1: In the following program, we define a readterms predicate. This predicate is used to read the first…
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Loops in Prolog The looping facility is contained in most of the programming languages. Looping is used to enable a set of…
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File Input and Output in Prolog File Output: Changing the Current Output Stream The tell/1 predicate is used to change the current…
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Map Coloring in Prolog In mathematics, the famous problem was coloring adjacent planar regions. Two adjacent regions cannot have the same color…
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Operators in Prolog notation contains a number of arguments in parenthesis like likes(hary, jack). Any user-defined predicate which has two arguments can…
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Predicates in Prolog There was a simple program that has five clauses. Head is a compound term for each first three clauses…
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Output and Input of Characters in Prolog Outputting Characters We can use the built-in predicate put/1 to provide the output of characters.…
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Backtracking with Failure While backtracking or ‘standard’ evaluation left-to-right, the fail predicate always fails, as the name implies. We can take advantage…
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Satisfying Goals in Prolog In this section, we will look at how the goals are satisfied by the Prolog. If the user…