Archimedean property
irrational
irrational number
hyperreal number
noninteger
extended real number system
complex number
open interval
surreal number
majorization
complexification
number
imaginary number
lower limit
algebraic integer
real function
real
real number
hyperbolic quaternion
absolute value
numerical value
real number line
Dedekind cut
standard topology
upper limit
number-theoretic function
valuation
imaginary part
imaginary
complex quantity
supremum
prime
split-complex number
prime quantity
numberhood
nonstandard number
nonreal
complex conjugate
continuum
real number system
divisibility sequence
Pisot-Vijayaraghavan number
purely imaginary number
Ostrowski numeration
practical number
real matrix
Heegner number
real analysis
characteristic
weird number
Gromov-Witten invariant
prime number
transcendental number
Blum integer
Dirichlet energy
Benford's law
posynomial
arithmetic
positional representation system
positional notation
domain
aleph-one
arithmetic function
composite number
quadratic integer
constant