Prolog


Introduction

1 Presentation of Prolog
  1.1 What is a Prolog program
      1.1.1 The Program
      1.1.2 The Query

2 The Facts
  2.1 Simple facts
  2.2 Facts with arguments
  2.3 How to query

3 Variables and Unification
  3.1 Simple unifications
  3.2 Variables unification example

4 Rules
  4.1 Rules
  4.2 How to add a rule with a program
      4.2.1 The instructions
      4.2.2 Example

5 Backtracking
  5.1 Fail
  5.2 Cut
  5.3 Not

6 Recursion
  6.1 What is recursion
  6.2 Examples of Recursion
      6.2.1 Example of the ancestors
      6.2.2 Factorial

7 Lists
  7.1 What is a list in Prolog
  7.2 How to manipulate list

8 Others Elements of Prolog
  8.1 Operators
  8.2 Arithmetic

9 Input and Output
  9.1 Input Output commands
  9.2 Read and Write
  9.3 Examples
      9.3.1 Calculating the cube of an integer
      9.3.2 Treating the terms of a file
      9.3.3 ASCII characters
      9.3.4 Using Another Program

10 SWI-Prolog
  10.1 What is SWI-Prolog
  10.2 Author
  10.3 Platforms
  10.4 FTP Sites


Appendix

A Meta Logical Constructs

B Input and Output
  B.1 input
  B.2 Output

C Some Others usefull predicats
  C.1 True
  C.2 Repeat
  C.3 Call
  C.4 Setof
  C.5 Bagof

D Comparison Operators
  D.1 Arithmetic Comparison Operators
  D.2 Term Comparison


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A   Meta logical Constructs

var(X)
True if X is a variable.var(X)
nonvar
True if X is not a variable.nonvar(X)
atom(X)
True if X is an atom.atom(X)
integer(X)
True if X is an integer.integer(X)
atomic(X)
True if X is an atom or a number.atomic(X)
float(X)
True if X is a floiting point number.float(X)
functor(Term,Name,Arity)
True if the arity of Term is Arity and his name Name.functor()



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 Input and Output -->