Section 15.01.   Separability and Validity.
   If any section or part of a section of this Charter proves to be invalid or unconstitutional, the same shall not be held to invalidate or impair the validity, force or effect of any other section or part of a section in this Charter, unless it clearly appears that such other section, or part of a section, is wholly or necessarily dependent for its operation upon the section or part of the section so held unconstitutional or invalid.