If any provision of this Guarantee, or the application thereof to any Person or circumstance, is invalid or unenforceable in any jurisdiction, (a) a substitute and equitable provision shall be substituted therefor in order to carry out, so far as may be valid and enforceable in such jurisdiction, the intent and purpose of the invalid or unenforceable provision; and (b) the remainder of this Guarantee and the application of such provision to other Persons or circumstances shall not be affected by such invalidity or unenforceability, nor shall such invalidity or unenforceability of such provision affect the validity or enforceability of such provision, or the application thereof, in any other jurisdiction.