Section 112. Limitation of other statutes

a. No other provision of law in
  any other statute which provides wholly or partly at the expense of  the
  state  or of a participating employer for pensions, retirement benefits,
  emoluments or awards for employees in government service,  their  widows
  or  other  dependents,  shall  apply  to members or beneficiaries of the
  retirement system continued by  this  article,  their  widows  or  other
  dependents.
    b. This article shall not:
    1.  Prevent  a  person  whose salary is paid from two or more sources,
  each entitling him to membership in a retirement system,  from  being  a
  member in all such systems, or
    2. Supersede or make inoperative the provisions of section two hundred
  twenty-seven  of the executive law in so far as they apply to an officer
  or employee in the division of state police of the executive  department
  who is a member of the retirement system.
    3.   Supersede   or   make  inoperative  the  provisions  of  sections
  twenty-five or twenty-five-a of the judiciary  law  in  reference  to  a
  judicial officer retired from office for disability.
    4.  Prevent  the extension of old-age and survivors insurance coverage
  to members of the retirement system or the receipt of benefits therefrom
  by such members, their wives or widows or their other dependents.
    5. Prevent a member of the state retirement system whose membership is
  authorized by paragraph nine of subdivision c of section forty  of  this
  article,  from  receiving, upon his subsequent retirement from the state
  retirement system, benefits based on service not included in  that  upon
  which  his  retirement  or  pension  from  another pension or retirement
  system is or would be based.
    6. Prevent payment of a survivor's benefit, pursuant  to  section  one
  hundred  fifty-four of the civil service law, on account of the death of
  a member of the retirement system.
    c. The provisions of this article shall be operative,  notwithstanding
  any contrary provision of law.