public void Test_is_transitive_false()
{
var binaryRelation = new Set<Tuple<int, int>> { new Tuple<int, int>(1, 2), new Tuple<int, int>(2, 3), new Tuple<int, int>(1, 3) };
binaryRelation.IsTransitive().ShouldBeTrue();
binaryRelation.IsEquivalenceRelation().ShouldBeFalse();
}
