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The Future of Set Theory by S. Shelah - http://front.math.ucdavis.edu/math.LO/0211397
The text of a talk given around the millennium. |
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Metamath Proof Explorer - http://www1.shore.net/~ndm/java/mm.html
Over 3000 complete formal proofs deriving numbers and beyond from Zermelo-Fraenkel set theory axioms. |
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Set Theoretic Analysis. - http://www.math.wvu.edu/~kcies/STA/STA.html
On a part of math where Set Theory, Topology and Analysis meet. Has surveys, preprints, conference announcements, book reviews and problems. |
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A Crash Course in the Mathematics of Infinite Sets - http://www.earlham.edu/~peters/writing/infapp.htm
A introductory guide for philosophers by Peter Suber, explaining the use of infinitary set theory. |
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Programming with Sets - http://www.cs.nmsu.edu/~complog/sets/
Using set-theoretic primitives as a conceptual tool in programming, includes discussion of SETL and MIRANDA languages. |