1 /* This file is part of the project "Hilbert II" - http://www.qedeq.org" target="alexandria_uri">http://www.qedeq.org 2 * 3 * Copyright 2000-2014, Michael Meyling <mime@qedeq.org>. 4 * 5 * "Hilbert II" is free software; you can redistribute 6 * it and/or modify it under the terms of the GNU General Public 7 * License as published by the Free Software Foundation; either 8 * version 2 of the License, or (at your option) any later version. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 */ 15 16 package org.qedeq.kernel.se.base.module; 17 18 19 /** 20 * Usage of a rule of interference. 21 * 22 * @author Michael Meyling 23 */ 24 public interface Reason { 25 26 /** 27 * Get name for this reason. 28 * 29 * @return Name. 30 */ 31 public String getName(); 32 33 /** 34 * Get references to previous formulas. 35 * 36 * @return List of references. Contains no entries with value <code>null</code>. 37 */ 38 public String[] getReferences(); 39 40 }