Maths Notation (Sets)

demon8991 · 3 Oct 2006 at 13:19

Just trying to get my head round some maths notation some of it is ok but some im stuggling with.

Is {3} a sub set of {3}?

Does {3} = {{3}}?

Does 0 belong to the empty set?

Does 0 belong to the empty set inside a set?

Im also struggling with this double sum question, as im trying to teach myself this subject.

demon8991 · 3 Oct 2006 at 13:26

Yer i know mate, im finding it really hard to get my head round.

demon8991 · 3 Oct 2006 at 13:28

Just got to evaluate the double sum.

demon8991 · 3 Oct 2006 at 13:49

Yer i know ive read loads of examples about it but none are like that.

So the answer is just 0.5(n+1)?

demon8991 · 3 Oct 2006 at 14:54

Therefore does the inner sum equal i^2 + i + 1?

demon8991 · 3 Oct 2006 at 18:18

Oh god im completly confused, i really need to be able to do this and its driving me nuts that i cant (im one of those people).