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