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SETS - Coggle Diagram
SETS
OPERATIONS ON SETS
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DIFFERENCE OF TWO SETS
The difference of the sets A and B is the set of elements of A which does not belong to B, and it is
denoted by A−B or A\B.
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SUBSETS
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Properties of subsets
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c) Every set is a subset of itself , that is for any set A , A.....A.
a) Every set is a subset of universal set , that is for any set A , A .....U.
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Finite – Infinite sets
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N = { 0 , 1 , 2 , 3 , 4, ... }
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UNIVERSAL SET (U)
The set that contains all the elements being discussed is called universal set, and it is denoted by U. 
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Georg Cantor is the first mathematician who uses the “SET CONCEPT” in mathematics.
Sets are denoted by capital letters, such as A, B, C....