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Vanilla 1.1.10 is a product of Lussumo. More Information: Documentation, Community Support.

1. Added to reduced scheme a characterization of reducedness by the internal language of the corresponding sheaf topos: A scheme $X$ is reduced iff its structure ring $\mathcal{O}_X$ is a residue field in the internal sense of $\mathrm{Sh}(X)$.

• CommentRowNumber2.
• CommentAuthorUrs
• CommentTimeFeb 8th 2013
• (edited Feb 8th 2013)

Thanks!

I have added some more links and a little bit of trivial this and that.