Question

Represent the following rational numbers on separate number lines: -7/4, 1 1/2

Answer 1

Answer:

The difference is the topology you put on Q. In these two cases you're generating an order topology, one based on the standard ordering, the other is an order inherited by the specific bijection you have with N. For the last question, definitely yes. You take the inverse of the bijection you were using before. Whereas you were originally arranging Q to look like N, the inverse is rearranging N to look like Q.