// Path: src/main/java/jhilbert/expressions/Expression.java
// public interface Expression extends TreeNode<Term>, Serializable {
// 
// 	/**
// 	 * Returns the kind of this <code>Expression</code>.
// 	 *
// 	 * @return kind of this expression.
// 	 */
// 	public Kind getKind();
// 
// 	/**
// 	 * Returns the sub-expressions of this <code>Expression</code> in
// 	 * proper order.
// 	 *
// 	 * @return list of subexpressions.
// 	 */
// 	public List<Expression> getChildren();
// 
// 	/**
// 	 * Returns the {@link DVConstraints} applicable to this
// 	 * <code>Expression</code>.
// 	 *
// 	 * @return applicable DVConstraints
// 	 *
// 	 * @throws ConstraintException if the DV constraints cannot be met
// 	 * 	ever.
// 	 */
// 	public DVConstraints dvConstraints() throws ConstraintException;
// 
// 	/**
// 	 * Returns the {@link Variable}s occurring in this
// 	 * <code>Expression</code>, in order of first appearance.
// 	 *
// 	 * @return variables occurring in this expression.
// 	 */
// 	public LinkedHashSet<Variable> variables();
// 
// 	/**
// 	 * Returns the totally unfolded version of this expression.
// 	 *
// 	 * @return totally unfolded expression.
// 	 */
// 	public Expression totalUnfold();
// 
// }


import java.util.List;
import jhilbert.expressions.Expression;
/*
    JHilbert, a verifier for collaborative theorem proving

    Copyright © 2008, 2009, 2011 The JHilbert Authors
      See the AUTHORS file for the list of JHilbert authors.
      See the commit logs ("git log") for a list of individual contributions.

    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 3 of the License, or
    (at your option) any later version.

    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 PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

    You may contact the author on this Wiki page:
    http://www.wikiproofs.de/w/index.php?title=User_talk:GrafZahl
*/

package jhilbert.data;



/**
 * A statement.
 */
public interface Statement extends Symbol {

	/**
	 * Returns the {@link DVConstraints} of this <code>Statement</code>.
	 *
	 * @return disjoint variable constraints.
	 */
	public DVConstraints getDVConstraints();

	/**
	 * Returns the hypotheses of this <code>Statement</code>.
	 *
	 * @return hypotheses of this statement.
	 */
	public List<Expression> getHypotheses();

	/**
	 * Returns the consequent of this statement.
	 */
// Path: src/main/java/jhilbert/expressions/Expression.java
// public interface Expression extends TreeNode<Term>, Serializable {
// 
// 	/**
// 	 * Returns the kind of this <code>Expression</code>.
// 	 *
// 	 * @return kind of this expression.
// 	 */
// 	public Kind getKind();
// 
// 	/**
// 	 * Returns the sub-expressions of this <code>Expression</code> in
// 	 * proper order.
// 	 *
// 	 * @return list of subexpressions.
// 	 */
// 	public List<Expression> getChildren();
// 
// 	/**
// 	 * Returns the {@link DVConstraints} applicable to this
// 	 * <code>Expression</code>.
// 	 *
// 	 * @return applicable DVConstraints
// 	 *
// 	 * @throws ConstraintException if the DV constraints cannot be met
// 	 * 	ever.
// 	 */
// 	public DVConstraints dvConstraints() throws ConstraintException;
// 
// 	/**
// 	 * Returns the {@link Variable}s occurring in this
// 	 * <code>Expression</code>, in order of first appearance.
// 	 *
// 	 * @return variables occurring in this expression.
// 	 */
// 	public LinkedHashSet<Variable> variables();
// 
// 	/**
// 	 * Returns the totally unfolded version of this expression.
// 	 *
// 	 * @return totally unfolded expression.
// 	 */
// 	public Expression totalUnfold();
// 
// }


// Path: src/main/java/jhilbert/data/Statement.java
import java.util.List;
import jhilbert.expressions.Expression;

/*
    JHilbert, a verifier for collaborative theorem proving

    Copyright © 2008, 2009, 2011 The JHilbert Authors
      See the AUTHORS file for the list of JHilbert authors.
      See the commit logs ("git log") for a list of individual contributions.

    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 3 of the License, or
    (at your option) any later version.

    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 PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

    You may contact the author on this Wiki page:
    http://www.wikiproofs.de/w/index.php?title=User_talk:GrafZahl
*/

package jhilbert.data;



/**
 * A statement.
 */
public interface Statement extends Symbol {

	/**
	 * Returns the {@link DVConstraints} of this <code>Statement</code>.
	 *
	 * @return disjoint variable constraints.
	 */
	public DVConstraints getDVConstraints();

	/**
	 * Returns the hypotheses of this <code>Statement</code>.
	 *
	 * @return hypotheses of this statement.
	 */
	public List<Expression> getHypotheses();

	/**
	 * Returns the consequent of this statement.
	 */
	public Expression getConsequent();