mathlib

98f0d695 - feat(linear_algebra/annihilating_polynomial): add definition of annihilating ideal and show minpoly generates in field case (#12140)

feat(linear_algebra/annihilating_polynomial): add definition of annihilating ideal and show minpoly generates in field case (#12140) adding item from trivial undergrad subjects list Co-authored-by: Patrick Massot <patrickmassot@free.fr> Co-authored-by: Anne Baanen <Vierkantor@users.noreply.github.com> Co-authored-by: Vierkantor <vierkantor@vierkantor.com>