1 Running a Prolog program
 1.1 Getting started
 1.2 Creating a Prolog program.
 1.3 The Web
 1.4 An Example
  1.4.1 Saving a file
  1.4.2 Consulting a file
  1.4.3 Posing a goal
  1.4.4 Tracing
 1.5 A note on filenames and directories in Prolog
2 Quitting Prolog
3 Further information
 3.1 Free Prologs
 3.2 Prolog Manuals
 3.3 Prolog courses on the web