Here is the problem:
Use the Archimedian property to prove that if a,b belongs to R (real number) with 0< a < b, then there is a rational number p/q with p and q both odd such that a<p/q<b. (Remark: Modify the proof that rationals are dense.)
Here is my work:
By the Archimedian property, there exists an odd q belongs to R such that 1 < qa implies that 1/q < a. By the Archimedian property agian, there exists an odd p belongs to R such that a<p/q<b.
Is it right???