Answer:
SUBSET FROM a SET
A function is more technically defined as a set of ordered pairings (a,b) where a∈A and b∈B, with the limitation, that there may only be one ordered pair with the same value of . This definition is based on a set of inputs (domain) and a set of potential outputs (codomain).
Set B is a superset of set A and set A is a subset of set B if every element of set A is also an element of set B. In the event that A and B are not equal, then A is a valid subset of B. One set is a subset of another is referred to as inclusion (or sometimes containment). Means that B includes A or that A is a part of B are additional ways to indicate that A is a subset of B.
Subsets are classified as
Proper Subset
Improper Subsets
An improper subset includes the null set in addition to every element of the original set, whereas a valid subset only comprises a few members of the original set. The expression ⊂ "is a proper subset of" designates a proper subset. A valid subset for sets A and B can be expressed using this symbol as A ⊂ B.
For example, if set S = {3,6,10}, then,
Number of subsets: {3}, {6}, {10}, {3,6}, {3,10}, {6,10}, {3,6,10} and Φ or {}.
Proper Subsets: {}, {3}, {6}, {10}, {3,6}, {3,10}, {6,10
Improper Subset: {3,6,10}
so {}, {3}, {6}, {10}, {3,6}, {3,10}, {6,10}, {3,6,10} is subset from {3,6,10}
Based on the case.
U = { 1,2,3,4,5,6,7}
A ={2,4,6}
It can defined that {2,4,6} is subset {1,2,3,4,5,6,7}
A ⊂ U
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