Find all proper subset of the set 3 part 1 out of 2 There is

Find all proper subset of the set. {3} part 1 out of 2 There is/are proper subset(s) of the set {3}.

Solution

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A proper subset S\' of a set  S is a subset that is strictly contained in S and so necessarily excludes at least one member of S.

In the given set {3}, there shall be two possible subset of given set i.e. [{},{3}]

However as per definition there shall beonly one proper subset of given set i.e. {} ....Solution

So, There is one proper subset of given set {3}