definiens: in the phrase means the de gree to which a subject or other thing extends, and such phrase does not mean simply ; ( vi ) definitions contained in this Warrant are applicabl e to the singular as well as the plural forms of such terms ; ( vii ) references to an agreement or instrument mean such agreement or instrument as from time to time amended, modified or supplemented ; ( viii ) references to a Person are also to its permitted su ccessors and assigns ; ( ix ) references to an,,, or refer to an Article of, a Section or Subsection of, or an Exhibit or Schedule to, this Warrant ; ( x ) words importing the masculine gender include the fe minine or neuter and, in each case, vice versa ; ( xi ) or refers to calendar days ; ( xii ) references to a Law include any amendment or modifi cation to such Law and any rules or regulations issued thereunder, whether suc h amendment or modification is made, or issuance of such rules or regulations occurs, before or, onl y with respect to events or developments occurring or actions taken or conditions existing after the d ate of such amendment, modification or issuance, after the date of this Warrant, but only to the ext ent such amendment or modification, to the extent i t occurs after the date hereof, does not have a retro active effect