the empty set

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Entries from David Roessli's Empty Set tagged with '∅'

Empty set symbol

Oddly enough, I'm having trouble finding a way to display a empty set symbol that works on Internet Explorer (7 included). The symbol ∅ doesn't display correctly. It shows up as a square. Converting it to its HTML entity ∅...

Welcome to the empty set

Welcome to the Empty Set [∅]. In mathematics and more specifically set theory, the empty set is the unique set which contains no elements. Wikipedia Multiple personalities Basically, this weblog is all about solving a case of multiple personalities. The...

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Hello, my name is David Roessli. I am a freelance web designer and developer based in Geneva, Switzerland.

This weblog is an nth attempt to solve my multiple online personalities and weblog/rss feeds burnout issues. (more)


I have been contemplating the idea of upgrading my desktop Mac since this spring. The latest 27" iMac (Quad-Core) seemed the perfect candidate, but the release of Apple's 27" Monitor last September made me stick with the Mac Pro...


The autopsy of an iconic album cover picked up on A stacked graph of successive radio signals from pulsar CP 1919, in a 1977 astronomy encyclopedia that originated in a 1970 Ph.D. thesis. Fascinating <3...


Check out my latest Flickr ramblings. Mostly day to day cameraphone pictures stolen here and there.

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