Between any two real numbers there is another real number?

Yes, between any two real numbers there is another real number. For example... 1.25 is between 1.2 and 1.3 1.205 is between 1.20 and 1.21 1.2005 is between 1.200 and 1.201 4.235893756385968347 is between 4.235893756385968346 and 4.235893756385968348 You can go as far as you want, there is no limit.