Characteristic for all#1308
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Motivation for this change
As of now, the characteristic of a ring is always prime, which does not really make sense in general (e.g. for
'Z_4). This is fixed by defining the characteristic of a ring as the minimal positive integer which is zero in the ring.Minimal TODO list
CHANGELOG_UNRELEASED.mdSee this Checklist for details.
Automatic note to reviewers
Read this Checklist.