In the interpretation and the application of the provisions of this chapter, they shall be held to be the minimum requirements for the promotion of the health, safety, morals, and general welfare. It is not intended to interfere with or abrogate or annul other rules, regulations or ordinances, provided that where this chapter imposes greater restrictions upon the use of buildings or premises, or upon the height or bulk of a building, or requires larger open spaces, the provisions of this chapter shall control.

If any section, subsection, sentence, clause or phrase of this chapter or the location of any district boundary shown on the Zoning Map that forms a part hereof is for any reason held by a court of competent jurisdiction to be invalid, such a decision shall not affect the validity of the remaining portions of this chapter or the Zoning District Map. The Borough Council of the Borough of Slippery Rock hereby declares that it would have passed this chapter and each section or part thereof irrespective of the fact that any one or more sections or parts thereof be declared invalid.