Hello all.

Note the picture:

http://www.picamatic.com/show/2009/0...2_bigthumb.jpg

They all are important for me, but you can answer to each one you know.

Regards.

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- September 5th 2009, 12:47 PMResearcher13 basic questions of set theory.
Hello all.

Note the picture:

http://www.picamatic.com/show/2009/0...2_bigthumb.jpg

They all are important for me, but you can answer to each one you know.

Regards. - September 5th 2009, 01:04 PMPlato
What is your point in posting such a list of statements?

- September 5th 2009, 01:13 PMResearcher
I could not solve them and I need their proofs.

- September 5th 2009, 02:21 PMmr fantastic
Too many questions in one thread. No more than 3 questions per thread please. And please type questions where possible rather than using attachments (typesetting maths symbols can be learned here: http://www.mathhelpforum.com/math-he...-tutorial.html). Thankyou.

Thread closed.