Examples with TrueContext com.sri.ai.grinder.sgdpllt.core.TrueContext used on opensource projects

Example 16 with TrueContext

use of com.sri.ai.grinder.sgdpllt.core.TrueContext in project aic-expresso by aic-sri-international.

the class LambdaBetaReductionSimplifierTest method testNoReduction.

@Test
public void testNoReduction() {
    Type peopleType = new Categorical("People", 4, arrayList(makeSymbol("ann"), makeSymbol("bob"), makeSymbol("tom")));
    Context context = new TrueContext();
    context = context.add(peopleType);
    Assert.assertEquals(parse("(lambda X in People : if X = ann then 0 else if X = bob then 0 else 0)()"), simplifier.apply(parse("(lambda X in People : if X = ann then 0 else if X = bob then 0 else 0)()"), context));
    Assert.assertEquals(parse("(lambda X in People, Y in People : if X = ann then 0 else if Y = bob then 0 else 0)(ann)"), simplifier.apply(parse("(lambda X in People, Y in People : if X = ann then 0 else if Y = bob then 0 else 0)(ann)"), context));
    Assert.assertEquals(parse("(lambda X in People, Y in People : if X = ann then 0 else if Y = bob then 0 else 0)(ann, bob, tom)"), simplifier.apply(parse("(lambda X in People, Y in People : if X = ann then 0 else if Y = bob then 0 else 0)(ann, bob, tom)"), context));
}

Example 17 with TrueContext

use of com.sri.ai.grinder.sgdpllt.core.TrueContext in project aic-expresso by aic-sri-international.

the class AbstractSingleVariableNumericConstraintFeasibilityRegionStepSolver method applyAndSimplifyWithoutConsideringContextualConstraint.

/**
	 * A method for simplifying an expression according to the context's theory, types and global objects,
	 * but <i>without</i> considering the contextual constraint,
	 * for the purpose of computing information about the step solver that is constant across contexts
	 * (that share the same basic information).
	 * Note that the context is still an argument, for the sake of providing the basic information,
	 * but the contextual constraint is ignored.
	 * @param comparison
	 * @param arguments
	 * @param context
	 * @return
	 */
protected Expression applyAndSimplifyWithoutConsideringContextualConstraint(String comparison, ArrayList<Expression> arguments, Context context) {
    Expression unsimplifiedAtom = apply(comparison, arguments);
    TrueContext typeContext = new TrueContext(context);
    Expression result = constraint.getTheory().simplify(unsimplifiedAtom, typeContext);
    return result;
}

Example 18 with TrueContext

use of com.sri.ai.grinder.sgdpllt.core.TrueContext in project aic-expresso by aic-sri-international.

the class CompoundTheoryWithoutDifferenceArithmeticTest method basicTests.

@Test
public void basicTests() {
    TheoryTestingSupport theoryTestingSupport = makeTheoryTestingSupport();
    Expression condition = parse("X = Y and Y = X and P and not Q and P and X = a and X != b");
    Context context = theoryTestingSupport.extendWithTestingInformation(new TrueContext(theoryTestingSupport.getTheory()));
    Constraint constraint = new CompleteMultiVariableContext(theoryTestingSupport.getTheory(), context);
    constraint = constraint.conjoin(condition, context);
    Expression expected = parse("(Y = a) and not Q and P and (X = Y)");
    assertEquals(expected, constraint);
}

Example 19 with TrueContext

use of com.sri.ai.grinder.sgdpllt.core.TrueContext in project aic-expresso by aic-sri-international.

the class SampleCommonInterpreterTest method setUp.

@Before
public void setUp() {
    // Make tests repeatable
    random = new Random(1);
    context = new TrueContext(new CompoundTheory(new DifferenceArithmeticTheory(false, false), new LinearRealArithmeticTheory(false, false), new EqualityTheory(false, false), new PropositionalTheory()));
}

Example 20 with TrueContext

use of com.sri.ai.grinder.sgdpllt.core.TrueContext in project aic-expresso by aic-sri-international.

the class BoundTest method testNormalize.

@Test
public void testNormalize() {
    Theory theory = new CompoundTheory(new EqualityTheory(false, true), new DifferenceArithmeticTheory(false, false), new LinearRealArithmeticTheory(false, false), new TupleTheory(), new PropositionalTheory());
    Context context = new TrueContext(theory);
    context = context.extendWithSymbolsAndTypes("X", "Boolean");
    context = context.extendWithSymbolsAndTypes("Y", "Boolean");
    //Set of numbers
    Expression one = DefaultSymbol.createSymbol(1);
    Expression two = DefaultSymbol.createSymbol(2);
    Expression three = DefaultSymbol.createSymbol(3);
    Expression setOFNumbers = ExtensionalSets.makeUniSet(one, two, three);
    //Set of functions
    Expression phi1 = parse("if X = true then 1 else if Y = true then 2 else 3");
    Expression phi2 = parse("if X = true then if Y = true then 4 else 5 else 6");
    Expression phi3 = parse("if X = true then 7 else if Y = true then 8 else 9");
    Expression phi4 = parse("if X = true then 10 else if Y = true then 11 else 12");
    Expression setOfFactors = ExtensionalSets.makeUniSet(phi1, phi2, phi3, phi4);
    assertEquals(parse("{if X then 1/7 else if Y then 2/7 else 3/7," + " if X then if Y then 4/21 else 5/21 else 2/7, " + "if X then 7/31 else if Y then 8/31 else 9/31, " + "if X then 10/43 else if Y then 11/43 else 12/43 }"), Bounds.normalize(setOfFactors, theory, context));
    assertEquals(parse("{ 1, 1, 1 }"), Bounds.normalize(setOFNumbers, theory, context));
}