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Mathematics 7 Online
OpenStudy (cwrw238):

I'm little confused about these symbols in Set Theory.

OpenStudy (cwrw238):

|dw:1407066100061:dw|

OpenStudy (cwrw238):

I've used the first one - it means subset of - right? but i've never seen the second one - what is the difference, if any.

OpenStudy (ikram002p):

subset \(\subset \) subset or contain/equal \(\subseteq \)

OpenStudy (cwrw238):

the second one means proper subset? what is a proper subset?

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