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Number System in Set Notation
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Terms in this set (13)
∪
Union  all the values in both sets connected by ∪
{ }
Set of values

Such that
∈
element of
∉
Not an element of
ℕ: natural
{p  p > 0 }
W: Whole
{p  p ∈ N ∪ p = 0}
ℤ: Integer
{p  p ∈ N ∪ p ∈ N ∪ p = 0}
ℚ: Rational
{ p/q  p ∈ ℤ, q ∈ N}
ℚ' : Irrational
{ p  p ∉ ℚ}
NOTE: symbol is sometimes ℚ with a bar over it.
ℝ: Real
{p  p ∈ ℚ ∪ p ∈ ℚ'}
i: imaginary
{bi  b ∈ ℝ and i is the imaginary unit}
ℂ: complex
{a + bi  a ∈ ℝ, b ∈ ℝ, and i is the imaginary unit}
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