Question

is{ a }a subset of {a,b,c}​

Answer 1

Answer:

Subset: A set A is a subset of a set B if every element of A is also an element of B. ... Then C ⊈ D, read “C is not a subset of D” since a is an element of C but not an element of D. Also, D ⊈ C since e ∈ D and e ∉ C. Example: A ⊆ A and ∅ ⊆ A.

What are all proper subsets of A = {a, b, c}?

What are all proper subsets of A = {a, b, c}?

A2A

There are 8 (2^number of elements in the set) subsets of A, and all of them except A itself are considered proper subsets.

So the proper subsets of A are:

{}, {a}, {b}, {c}, {a, b}, {a, c}, and {b, c}.

Step-by-step explanation:

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Answer 2

Answer:

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