On ramps

E

Is an element of or belongs to, as in E

E other way

There exists

A upside down

For all of every

:or |

Such that

Arrow to the right

Function that maps or relates elements

Commutative addition

a+b=b+a

Commutative

a•b=b•a

Associative addition

(a+b)+c=a+(b+c)

Associative multiplication

(a•b)•c=a•(b•c)

Identity addition

a+o=a

Identity multiplication

a•1=a

Inverse addition

a+(-a)=0

Inverse multiplication

a•1/a=1