What can be said about $\pi+e$ and $\pi e$? Are these numbers rational or irrational?
109175
Why is it hard to prove whether $\pi+e$ is an irrational number?
39021
Proving that $\sqrt{2}+\sqrt{3}$ is irrational
150576
When is an Integer a Rational Number, and are All Ratios Rational, Even $\frac{\sqrt{7}}{2}$?
37642
Why is $\pi$ irrational if it is represented as $C/D$?
23705
Does $\pi$ contain all possible number combinations?
158627
$e^{\left(\pi^{(e^\pi)}\right)}\;$ or $\;\pi^{\left(e^{(\pi^e)}\right)}$. Which one is greater than the other?
34825
Intuitive explanation for how could there be "more" irrational numbers than rational?
96204
Irrational number $\sqrt2$ proof
70974
How can zero divided by $i$ be $2\pi$?
138355
Improper rational/trig integral comes out to $\pi/e$
120906
Is there a proof that $\pi \times e$ is irrational?
132928
Digits of $\pi$ forming primes?
4946
Non-existence of irrational numbers?
128298
Irrationality of sum of two logarithms: $\log_2 5 +\log_3 5$
63960
proving "e" irrational using convergent series
15110
About irrational logarithms
141424
$\log_7 n$ is either an integer or an irrational number