Definition
A well defined collection of distinct objects
called elements
f uez carts brackets
l not a set
refer to sets with E
e s oct 2 x is an element of integers
Continuation with elipsis
Cs a b 4 z must be recognizable pattern
infinite continuation
e g red orange yellow colors of the rainbow
, EI.tt es.nmis
Integers 3 2 1,0 1 2,3 I
Rational numbers
Q
Real numbers IR
Complex numbers 3 2 stris re i I
setbuildernotations
w description of criteria x mustmeet
x w
e.g Q a b 2 b to