SOLUTION: A={x/xEN and 13<x<18} B={12, 13,14,15,16,17,18} For the sets A and B determine whether A=B, A is a subset of B, or B is a subset of A} For the question I said the A=B, but t

Question 184729This question is from textbook A Survey of Mathematics with Application
: A={x/xEN and 13 B={12, 13,14,15,16,17,18}
For the sets A and B determine whether A=B, A is a subset of B, or B is a subset of A}
For the question I said the A=B, but then I look at it and i'm not sure, I see that the 12 is less than 13, but if it was equal wouldn't it have the less than/equal to sign. I'm confused please helP! This question is from textbook A Survey of Mathematics with Application

Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!

Notice how ALL of the elements of set A are also elements of set B, so this shows us that set A is a subset of set B (ie all of A is in B). So

Note: the two sets A and B are NOT equal since set B has the element 12 (but set A does NOT have the element 12)
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