Set - it is a collection of objects, people or numbers with a common characteristic, Equal Set - Contain the exact same elements, Union Set (⋃) - It is the set of elements in the all the sets together , Intersection (⋂) - set of elements that are common to both sets, Subset - If all elements in Set B are contained in Set A, Universal Set - Denoted by a box around the sets and the capital letter U, A' - A compliment - all elements in the sets but not in Set A, Cardial Number symbol - # , Number of elemets in a set is called  - cadrinal number, Element symbol - ∈, things that are in a set - elements, Null set - the empty set, is the set that does not contain anything, Symbol for null set - { } or ∅, Venn diagram - a series of overlapping circles usually 2 or 3,

Sets Terminology

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