com.sri.ai.grinder.sgdpllt.library.commonrewriters.CommonSimplifier Maven / Gradle / Ivy

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 * Copyright (c) 2013, SRI International
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 * Licensed under the The BSD 3-Clause License;
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package com.sri.ai.grinder.sgdpllt.library.commonrewriters;

import com.google.common.annotations.Beta;
import com.sri.ai.grinder.sgdpllt.library.BindingTopSimplifier;
import com.sri.ai.grinder.sgdpllt.library.boole.BooleanSimplifier;
import com.sri.ai.grinder.sgdpllt.library.equality.EqualitySimplifier;
import com.sri.ai.grinder.sgdpllt.library.inequality.InequalitySimplifier;
import com.sri.ai.grinder.sgdpllt.library.lambda.LambdaBetaReductionSimplifier;
import com.sri.ai.grinder.sgdpllt.library.number.NumericSimplifier;
import com.sri.ai.grinder.sgdpllt.library.set.CardinalityOfSetConstantSimplifier;
import com.sri.ai.grinder.sgdpllt.library.set.IntensionalSetConditionTopRewriter;
import com.sri.ai.grinder.sgdpllt.library.set.IntensionalSetFalseConditionToEmptySetTopRewriter;
import com.sri.ai.grinder.sgdpllt.library.set.invsupport.SetExpressionIsEqualToEmptySetTopRewriter;
import com.sri.ai.grinder.sgdpllt.rewriter.api.TopRewriter;
import com.sri.ai.grinder.sgdpllt.rewriter.core.CombiningTopRewriter;
import com.sri.ai.grinder.sgdpllt.theory.tuple.rewriter.TupleSimplifier;

/**
 * A {@link TopRewriter} aggregating:
 * 
 * 
 *  {@link BindingTopSimplifier}: replaces symbols by their values(=, !=)
 * 
 {@link BooleanSimplifier}: boolean connectives (and, or, not, <=>, =>) and if then else
 * 
 {@link NumericSimplifier}: arithmetic (+, -, *, /) and inequalities (<, <=, >=, >)
 * 
 {@link EqualitySimplifier}: equality and disequality (=, !=)
 * 
 {@link InequalitySimplifier}: inequality (<, <=, >, >=)
 * 
 {@link CardinalityOfSetConstantSimplifier}: cardinalities (must be registered in context's global objects as a function application of | . |).
 * 
 {@link LambdaBetaReductionSimplifier}: replaces (lambda X : f(X))(E) by f(E).
 * 
 {@link IntensionalSetConditionTopRewriter}: evaluates intensional set conditions.
 * 
 {@link IntensionalSetFalseConditionToEmptySetTopRewriter}: reduces intensional set with false condition to empty set.
 * 
 {@link SetExpressionIsEqualToEmptySetTopRewriter}: solves equalities between set expressions in a certain language and empty set.
 * 
 * 
 * @author braz
 *
 */
@Beta
public class CommonSimplifier extends CombiningTopRewriter {
	
	public CommonSimplifier() {
		super(
				"Common operations",
				new BindingTopSimplifier(),
				new BooleanSimplifier(),
				new NumericSimplifier(),
				new EqualitySimplifier(),
				new InequalitySimplifier(),
				new CardinalityOfSetConstantSimplifier(),
				new LambdaBetaReductionSimplifier(),
				new TupleSimplifier(),
				
				// sets
				new IntensionalSetConditionTopRewriter(),
				new IntensionalSetFalseConditionToEmptySetTopRewriter(),
				new SetExpressionIsEqualToEmptySetTopRewriter()
				);
	}
}