Founded in late 2003 and heartquartered in France, we are **non-profit** and **independant**.

We believe in the open web, think internet services should be sustainable, build for the long term.

While we are re-launching the service, we only accept new members through invitation.

The history of category theory offers a rich source of information to
explore and take into account for an historically sensitive
epistemology of mathematics. It is hard to imagine, for instance, how
algebraic geometry and algebraic topology could have be

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