@Test
public void testNotIntroductionString() throws InvalidProofException {
String string = "¬Intro(1, 2)";
FirstOrderLogicFormula goal = AstGenerator.generateAst("p");
MainProof proof = new MainProof(goal);
Justification given = JustificationGenerator.generateJustification(proof, "given");
FirstOrderLogicFormula formula = AstGenerator.generateAst("q");
proof.addProof(new SingleLineProof(formula, given));
proof.addProof(new SingleLineProof(goal, given));
Justification just = JustificationGenerator.generateJustification(proof, string);
assertEquals(string, just.toString());
}
@Test
public void testNotIntroNonAssumption() throws InvalidProofException {
FirstOrderLogicFormula goal = AstGenerator.generateAst("¬p");
FirstOrderLogicFormula falsity = AstGenerator.generateAst("F");
FirstOrderLogicFormula p = AstGenerator.generateAst("p");
MainProof mainProof = new MainProof(goal);
Justification given = JustificationGenerator.generateJustification(mainProof, "given");
mainProof.addProof(new SingleLineProof(p, given));
mainProof.addProof(new SingleLineProof(falsity, given));
Justification notIntro = JustificationGenerator.generateJustification(mainProof, "¬Intro(1,2)");
assertTrue(notIntro instanceof NotIntroduction);
assertFalse(notIntro.checkFormula(goal));
}