#  Copyright (c) 1997-2015
#  Ewgenij Gawrilow, Michael Joswig (Technische Universitaet Berlin, Germany)
#  http://www.polymake.org
#
#  This program is free software; you can redistribute it and/or modify it
#  under the terms of the GNU General Public License as published by the
#  Free Software Foundation; either version 2, or (at your option) any
#  later version: http://www.gnu.org/licenses/gpl.txt.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPSE.  See the
#  GNU General Public License for more details.
#-------------------------------------------------------------------------------

# @topic application
# 
# Matroids encode the concept of "(in)dependence" in an abstract way.  You
# can define matroids via vector configurations or graphs, do basic
# conversions between different descriptions and perform basic operations such
# as deletions and contractions.

IMPORT
  graph

USE
  common polytope

file_suffix mat

# A matroid on the set //{0,...,n-1}//.  Here //n// is the same as [[N_ELEMENTS]].
# 
declare object Matroid;

INCLUDE
  help.rules
  matroid_properties.rules
  matroid.rules
  matroid_examples.rules
  _4ti2.rules




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