SOLUTION: how can i differenciate proper and improper subsets

Question 1082970: how can i differenciate proper and improper subsets
Answer by Theo(13342) (Show Source): You can put this solution on YOUR website!
a proper subset is completely contained in its superset but is not equal to its superset.

eample:

set A = {1,2,3,4,5}

set B = {1,2,3,4,5}

set C = {1,2,3,4}

set B is an improper subset of set A because it is wholly contained within set A but is also the same as set A.

set C is a proper subset of A because it is wholly contained within set A but is not also the same as set A.

every set is an improper subset of itself.

no set can ever be a proper subset of itself.

here's a definition from the web.

http://www.mathcaptain.com/algebra/improper-subset.html

any questions, send me an email.

if a set has only 1 element, then the only proper subset is the null set.

if a set has no elements, then there is no proper subset, but there is an improper subset, namely another set that has no elements.
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