Does 'There are a number of expensive jewelry and other duty-free shops, all with goods priced in US dollars (duty-free goods must always be paid for in foreign currency).' stand independently of the premise 'You can pay using the US dollar when buying goods from the duty-free shops.', neither following nor contradicting it?
There are a number of expensive jewelry and other duty-free shops, all with goods priced in US dollars (duty-free goods must always be paid for in foreign currency).###You can pay using the US dollar when buying goods from the duty-free shops.