This is a backgrounder on the nlab (or n-category lab), a collaborative wiki that serves as a public notebook for a bunch of researchers working with higher categories.
Background blog posts on the n-category cafe:
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A comment by Urs Schreiber first suggesting the idea (August 20, 2007).
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Toward a Higher-Dimensional Wiki (September 2, 2007) by John Baez, discusses the idea of a wiki developing mathematical ideas from the higher category theory perspective, as well as some possible choices of wiki software for it.
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Beyond the Blog (November 25, 2008) by David Corfield, bringing up again the idea of starting a wiki.
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nLab (November 28, 2008) by urs Schreiber, announcing the creation of nLab.
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Organizing the pages at nLab (December 31, 2008) by David Corfield.
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nLab — general discussion (January 4, 2009) by Urs Schreiber.
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nLab — more general discussion (May 6, 2009) by David Corfield.
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Being tentative on nLab (July 17, 2009) by David Corfield.
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nLab — how to get started (July 23, 2009) by urs Schreiber.
Important pages on nLab:
Other blog posts commenting on/mentioning the nLab:
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Why do I find Math Overflow fun and nLab not? (October 15, 2008) by Ben Webster.
