The Stacks project

Fix a proof

Thanks to Andrea Panontin
https://stacks.math.columbia.edu/tag/09XI#comment-8658

has a root

Thanks to Matthieu Romagny
https://stacks.math.columbia.edu/tag/09XI#comment-4053

Fix some idiotic errors in more-algebra

THanks to Brian Conrad
https://stacks.math.columbia.edu/tag/09XI#comment-3635

Reference for characterization henselian pairs

Gabber's criterion for henselianness...

Thanks to Kestutis Cesnavicius who writes:
---------------

... a proof for Gabber's criterion of Henselianess in the
attached files. There is no good reference for this (Gabber's sketch
consists of only 6 lines!), so I think it would be good if this could
be incorporated into the Stacks Project. I've indicated the appropriate
places where this could be inserted in the attached pdf.

Also, I think it would be very nice to have a section like
https://stacks.math.columbia.edu/tag/09XD but for "Zariski pairs,"
i.e., for those (A, I) with I \subset \rad(A). For instance,
https://stacks.math.columbia.edu/tag/09XF really belongs to such a section.

Fix a couple of double word mistakes

Add details to a proof and fix error

Thanks to JuanPablo
http://stacks.math.columbia.edu/tag/09XI#comment-2171

Radical ideal of A ---> Jacobson radical of A

Thanks to Kestutis Cesnavicius
http://stacks.math.columbia.edu/tag/09XE#comment-457

Tags: Added new tags

Skeleton section on henselian pairs