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Group A
Group B
Group C
Group D
•Set a well-defined collection of ideas
and objects.
• Elements are objects in the set.
• Universal sets refers to the set which contains all the
elements under discussion.
Describing Sets1. Roster Method
A = { }
A = {dog, horse, cat, tiger}
Roster Method
-This method enumerates the elements of a set inside a pair of braces.
2. Set- Builder Notation
A = {x x is a yellow fruit}
Read as: A is the set of all x such that x is a yellow
fruit.
Kinds of SetFINITE
Kinds of SetINFINITE
Kinds of SetEMPTY
FINITE is a set with the elements are countable.
INFINITE is a set with the elements not countable.
EMPTY a set that has no elements.
Kinds of Set According to Relationship
A B
JOINT SETS
Kinds of Set According to Relationship
A B
DISJOINT SETS
Kinds of Set According to Relationship
A B
EQUIVALENT SETS
Kinds of Set According to Relationship
A B
EQUAL SETS