1 If X is a topological (or metric) space and M is a metric space, then the set of all bounded continuous functions from X to M forms a metric space if we define the metric as above: d (f, g) = sup x in X d (f (x), g (x)) for any bounded continuous functions f and g.
Invisalign is orthodontic appliance, so since orthodontic treatment is allowed as an FSA expense, Invisalign is covered. Different companies have different rules concerning amounts set aside and the timing of how funds are used for orthodontics.
It is set up in this way so that it can be used alongside a Health Savings Account (HSA). Other than the restriction of eligible expenses to vision, dental and orthodontia, the rules governing the limited-. purpose health FSA are the same as those that apply to the general-purpose health FSAâsame maximum, same use-. or-lose rule, same claim filing deadline.