The mathmatical statement 4 C A means? The "C'' is not an actual C.

Question

The mathematical statement 4 C A means? The c is not a c it means its part of a set or something..

Answer 1

Hi Taylor!

 

Did you mean 4∈A ? 

 

Cuz there's a BIG difference between 4⊂A and 4∈A.  4∈A means that A is a set which contains different elements, and 4 is one of those elements.  4⊂A means that 4 is a subset of the set A, but most mathematicians don't say that numbers are themselves subsets of anything-- that's weird.  It's more correct to say {4}⊂A.  But that's kinda nitpicky... which is why I think you meant 4∈A.

Answer 2

Hi Taylor,

 

There is a set A representing some elements in it. 4 is a part of the set which is represented as 4 ⊂ A.

So 4 being an element from A can also be treated as a set and is called subset of A.

Answer 3

4 ⊂ A, means 4 is a subset of the set A.