Permalink Submitted by Anonymous on November 3, 2014

what is the measure of adding the prefixes a-1 and b-1

it seems you are adding a prefix to an infinite set, which shifts that set, hence the doubling of the original measure comes from this non-free move (adding the prefix)

## measure of prefix

what is the measure of adding the prefixes a-1 and b-1

it seems you are adding a prefix to an infinite set, which shifts that set, hence the doubling of the original measure comes from this non-free move (adding the prefix)