uncountable set
set with cardinal number larger than that of the set of all natural numbers
cardinal characteristic of the continuum
cardinal number between ℵ₁ and 𝔠 associated to the set of real numbers
Vitali set
subset of [0,1] whose intersection with any translation of the set of rationals is a singleton; elementary example of a non-Lebesgue-measurable set of reals
set of real numbers
set whose elements are the real numbers
ineffable cardinal
kind of large cardinal number