True or false (you must giving convincing reasoning to support your claim) {{ 4 } } ⊆ { 1 , 2 , 3 , { 4 } }

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ISBN:9780470458365
Author:Erwin Kreyszig
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Section 2.1 Question 5l)

True or false (you must giving convincing reasoning to support your claim)

{{ 4 } } ⊆ { 1 , 2 , 3 , { 4 } }. 

Expert Solution
Step 1

If every element of set A is an element of set B, then A ⊆ B.

Step 2

Here, element of set A is, {4}

elements of set B are 1,2,3,{4}

As every element of A is an element of B, A ⊆ B

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