MathPHP\SetTheory\SetOperationsTest::dataProviderForIntersect PHP Метод

    public function dataProviderForIntersect()
    {
        return [[[], [], [], new Set()], [[1], [], [], new Set()], [[], [1], [], new Set()], [[1], [1], [1], new Set([1])], [[1], [2], [], new Set()], [[2], [1], [], new Set()], [[2], [2], [2], new Set([2])], [[1, 2], [1, 2], [1, 2], new Set([1, 2])], [[1, 2], [2, 1], [1, 2], new Set([1, 2])], [[1, 2, 3, 'a', 'b'], [1, 'a', 'k'], [1, 'a'], new Set([1, 'a'])], [[1, 2, 3, 'a', 'b', new Set([1, 2])], [1, 'a', 'k'], [1, 'a'], new Set([1, 'a'])], [[1, 2, 3, 'a', 'b'], [1, 'a', 'k', new Set([1, 2])], [1, 'a'], new Set([1, 'a'])], [[1, 2, 3, 'a', 'b', new Set([1, 2])], [1, 'a', 'k', new Set([1, 2])], [1, 'a', new Set([1, 2])], new Set([1, 'a', new Set([1, 2])])], [[1, 2, 3, 'a', 'b', new Set()], [1, 'a', 'k', new Set([1, 2])], [1, 'a'], new Set([1, 'a'])], [[1, 2, 3, 'a', 'b', new Set([1, 2])], [1, 'a', 'k', -2, '2.4', 3.5, new Set([1, 2])], [1, 'a', new Set([1, 2])], new Set([1, 'a', new Set([1, 2])])]];
    }