The various analyses set out in this Code, constituting enumerations or lists of the titles, parts, chapters, subchapters and sections of this Code, and the descriptive headings or catchlines immediately preceding or within the texts of the individual sections of this Code, except the section numbers included in the headings or catchlines immediately preceding the texts of such sections, do not constitute part of the law. All derivation and other notes set out in this Code are given for the purpose of convenient reference, and do not constitute part of the law.