From and after such notice has been sent to a Permitted Leasehold Mortgagee, such Permitted Leasehold Mortgagee shall have the same period, after the giving of such notice upon its remedying any default or acts or omissions which are the subject matter of such notice or causing the same to be remedied, as is given Tenant after the giving of such notice to Tenant, plus in each instance, the additional periods of time specified in subsections (d) and (e) of this Section 17.1 to remedy, commence remedying or cause to be remedied the defaults or acts or omissions which are the subject matter of such notice specified in any such notice. No such notice by Landlord to Tenant shall be deemed to have been duly given unless and until a copy thereof has been sent, in the manner prescribed in Section 35.1 of this Master Lease, to every Permitted Leasehold Mortgagee for which notice has been properly provided to Landlord pursuant to Section 17.1(b) hereof. Default Notice. Landlord, upon providing Tenant any notice of: (i) default under this Master Lease or (ii) a termination of this Master Lease, shall at the same time provide a copy of such notice to every Permitted Leasehold Mortgagee for which notice has been properly provided to Landlord pursuant to Section 17.1(b) hereof.