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Arithmetik, Geometrie, Algebra, Logik, Zahlentheorie, Wahrscheinlichkeitstheorie, Analysis,...
General chat MUC for the Umbrellix XMPP service and affiliated services (IRC, Wiki), as well as for just talking about strange subjects
Alles rund um Apple: Jabber-Chat-Clients, Hard- und Software
This XMPP channel automatically posts new xkcd comics.
A chatroom for the builders of technology related things, hackers in the old sense of the word, phreakers, electrical engineering hobbyists, and the like.
An XMPP-to-IRC plumbing bridge
Theoretical Computer Science: FLT, automata theory, verification, ECC, complexity and computability theory ...
自立介護のための技術支援 / Technical adviser for care and welfare.