DrDelMath

SYMBOLS WITH SPECIAL MEANING
AS USED IN MATHEMATICS

Symbol
Meaning
Example
Read as
=
is equal to 3 + 4 = 7 3 plus 4 is equal to 7
is not equal to 3 + 4 5 3 plus 4 is not equal to 5
<
is less than 5 < 8 5 is less than 8
is less than or equal to x 8 x is less than or equal to 8
>
is greater than 8 >3 8 is greater than 3
is greater than or equal to x y x is greater than or equal to y
is an element of 5 {3, 4, 5, 8} 5 is an element of the set {3, 4, 5, 8}
is not an element of 5 {3, 4, 8} 5 is not an element of the set {3, 4, 8}
the null set    
 is a proper subset of,
 is properly contained in
A {3, 4, 8}
The set A is a proper subset of the set {3, 4, 8}
The set A is properly contained in the set {3, 4, 8}
is a subset of,     is contained in A {3, 4, 8}
The set A is a proper subset of the set {3, 4, 8}
The set A is properly contained in the set {3, 4, 8}
is a proper superset of ,    
properly contains
B {a, b, p, y} The set B is a proper superset of the set {a, b, p, y}
The set B properly contains the set {a, b, p, y}
is a superset of,    
contains
B {a, b, p, y} The set B is a proper superset of the set {a, b, p, y}
The set B properly contains the set {a, b, p, y}
union of sets A B The union of sets A and B
intersection of sets A B The intersection of sets A and B
implies 3 + 4 = x x = 7 3 plus 4 is equal to x implies x is equal to 7
is implied by x = 5 5x = 25 x is equal to 5 is implied by the equation 5x = 25
is equivalent to 3x + 2 = 53x = 3 The equation 3x + 2 = 5 is equivalent to the
equation 3x = 3