Do real numbers include all kinds of numbers as long as they are on the number line?
48028
True Definition of the Real Numbers
58636
Do the real numbers and the complex numbers have the same cardinality?
73578
Do infinitely many points in a plane with integer distances lie on a line?
106881
Does "finite" include zero?
51059
Real-world applications of prime numbers?
24582
Is the set of sequences of natural numbers with trailing zeros countable?
87410
Are there real numbers that are neither rational nor irrational?
112910
Is the set of real numbers really uncountably infinite?
2796
How to tell Mathematica that certain variables are real/imaginary, integer-valued, etc
126985
Generics - where T is a number?
51191
Does a negative number really exist?
31900
Induction on Real Numbers
118175
Can we say that $\frac{0}{0}$ is every number?
22498
In set theory, how are real numbers represented as sets?
12547
Is it okay to "ignore" small numbers in limits where $x$ approaches infinity?
13857
Why (directly!) does every number divide 9, 99, 999, ... or 10, 100, 1000, ..., or their product?
106940
Why are complex numbers considered to be numbers?