If any clause, sentence, paragraph, section or part of this article, as originally added by chapter eight hundred forty-one of the laws of nineteen hundred forty-seven, or as amended or supplemented heretofore or hereafter, shall be adjudged by any court of competent jurisdiction, to be invalid or unconstitutional, such judgment shall not affect, impair or invalidate the remainder thereof, but shall be confined in its operation to the clause, sentence, paragraph, section or part thereof directly involved in the controversy in which such judgment shall have been rendered.
New York Legal Code