SOLUTION: For sets A and B, determine whether A = B, A is a subset of B, or B is a subset of A
A = { x| x є N and 13 < x < 18}
B = { 12, 13, 14, 15, 16,
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Question 177994This question is from textbook
: For sets A and B, determine whether A = B, A is a subset of B, or B is a subset of A
A = { x| x є N and 13 < x < 18}
B = { 12, 13, 14, 15, 16, 17, 18}
Help me please!!!!
This question is from textbook
Found 2 solutions by stanbon, solver91311:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
For sets A and B, determine whether A = B, A is a subset of B, or B is a subset of A
A = { x| x є N and 13 < x < 18} = [14,15,16,17}
B = { 12, 13, 14, 15, 16, 17, 18}
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A is a subset of B
========================
Cheers,
Stan H.
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
The description of A tells us that the elements in A must be positive integers (or perhaps non-negative integers depending on who is defining the Natural numbers) and that all elements of A are greater than 13 and all elements of A are less than 18. So you could enumerate set A rather easily by:
Now you can see that there are elements in B not contained in A, so:
B Ë A
but all of the elements of A are also contained in B, so: 
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