What is the definition of proper subset?

Answer

A set S is a proper subset of a set T if each element of S is also in T and there is at least one element in T that is not in S.
1 Additional Answer
Ask.com Answer for: definition of subsets
sub·set
[suhb-set]
NOUN
1.
a set that is a part of a larger set.
2.
Mathematics a set consisting of elements of a given set that can be the same as the given set or smaller.
Source: Dictionary.com
Q&A Related to "What is the definition of proper subset?"
A subset is a portion of a set. Mathematically defining, a set in which all the elements can be found in another set is said to be a subset of the latter set.
http://answers.yahoo.com/question/index?qid=200806...
You could use the axiom of extensionality to make a simpler definition: $$A\subsetneq B =_\mathrm{def} (\forall x\in A. x\in B)\land \lnot(A=B).$$ This is, of course, equivalent to
http://math.stackexchange.com/questions/166651/wha...
According to the XMetal specs, you can style elements to look like tables using display:table;, etc. Read more here. So you could do this dl { display: table; } di{ display:table-row
http://stackoverflow.com/questions/7416362/how-can...
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An improper subset is defined as the subset consisting of all elements of a given set. The antonym of improper subset is proper subset. A proper subset of a set ...
While I'm not trying to get overly 'definitional' I believe that Marketing Automation is a subset of CRM - so it's not an either/or decision.
Thanks for asking this important question Merlin. There are a lot of definitions floating around out there.

Lead generation is a subset ...
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