CS1005 - Week 2: Sets

∈##Element - An element belonging to a set.####Set##A collection of definite and distinct objects used to determine if an object belongs to the set.####∉##Not an element - An element not belonging to a set.####⊂##Proper Subset - A subset that is strictly smaller than the original set.####Singleton Set##A set with only one element, denoted as { }.####Membership##Denoted by the symbol ∈ and signifies that an element belongs to a set.####⊄##Not a (proper) Subset - A subset that is not strictly smaller than the original set.####⊆##Subset - A set that is either equal to or smaller than another set.####Set Equality##Denotes that two sets contain the same elements, shown as A=B.####⊊##Proper Subset - A subset that is strictly smaller than the original set.####∪##Union - Bringing together elements from two or more sets.####∩##Intersection - The set of elements that overlap in two or more sets.####A'##Complement of A - The set of elements not in set A.####∅ Empty Set##A set containing no elements.####|A|##Cardinality - The size or number of elements in set A.####