Say I have the concept of a "Range", which is basically an "Interval" in Mathematics. If a range is inclusive ("closed") on one end and exclusive on the other, it has the following property:
It can be placed immediately before or after another range with the same inclusiveness of both endpoints and leave no gaps or overlapping.
For example, given the ranges 0-5 and 5-10, if their starts are inclusive and their ends are exclusive, they can be appended to form the range 0-10. However, if their starts and ends are both inclusive or exclusive then appending them will result in either an overlap or a gap.
What is the most suitable adjective or adjectival phrase I can use to describe a range that has this property? The best I can think of is tessellatable, which is really more about geometry and seems uncommon.