 | Report generated by Clover Code Coverage v3.1.10 Fri May 24 2013 13:47:32 UTC. |
Clover: Open Source License registered to qedeq.org . |
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Existential | Line # 31 | 0 | 0 | - |
-1.0
|
||||||||||||||||||||||||||||||||||||||||||||||||||||
| No Tests | |||
| 1 | /* This file is part of the project "Hilbert II" - http://www.qedeq.org | |
| 2 | * | |
| 3 | * Copyright 2000-2013, 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 | import org.qedeq.kernel.se.base.list.Element; | |
| 19 | ||
| 20 | ||
| 21 | /** | |
| 22 | * Rule of existential generalization. | |
| 23 | * <pre> | |
| 24 | * A(x) -> B | |
| 25 | * ----------------------- | |
| 26 | * exists x A(x) -> B | |
| 27 | * </pre> | |
| 28 | * | |
| 29 | * @author Michael Meyling | |
| 30 | */ | |
| 31 | public interface Existential extends Reason { | |
| 32 | ||
| 33 | /** | |
| 34 | * Get this reason. | |
| 35 | * | |
| 36 | * @return This reason. | |
| 37 | */ | |
| 38 | public Existential getExistential(); | |
| 39 | ||
| 40 | /** | |
| 41 | * Get reference to formula. Usually this a formula of type A(x) -> B | |
| 42 | * | |
| 43 | * @return Reference to previously proved formula. | |
| 44 | */ | |
| 45 | public String getReference(); | |
| 46 | ||
| 47 | ||
| 48 | /** | |
| 49 | * Get free subject variable we want to quantify over. | |
| 50 | * | |
| 51 | * @return Free subject variable. | |
| 52 | */ | |
| 53 | public Element getSubjectVariable(); | |
| 54 | ||
| 55 | } | |
|
||||||||||