Every set contains the empty set. Every set is a subset of itself.
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The only subset of an empty set is the empty set itself.
Yes,an empty set is the subset of every set. The subset of an empty set is only an empty set itself.
Recall that Improper subset of A is the set that contains all and only elements of A. Namely A. So does the empty set have all of A provided A is not empty? Of course not! The empty set can be only considered an improper subset of itself.
Any set has the empty set as subset A is a subset of B if each element of A is an element of B For the empty set ∅ the vacuum property holds For every element of ∅ whatever property holds, also being element of an arbitrary set B, therefore ∅ is a subset of any set, even itself ∅ has an unique subset: itself
The only subsets of the set containing 5564 is the empty set and the set {5564}.