Extensions to core Prolog.			{#extensions}
=========================

YAP includes a number of extensions over the original Prolog
language. Next, we discuss how to use the most important ones.

  + @ref Rational_Trees

  + @ref AttributedVariables

  + @ref  DepthLimited

  + @ref  Tabling

  + @ref Threads

  + @ref Profiling

  + @ref YAPArrays

  + @ref Parallelism