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Commit 2022-01-24 12:18 ee36571e

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feat(algebra/lie/cartan_subalgebra): add self-normalizing characterisation for Lie subalgebra (#11598)

Estimated changes

Modified src/algebra/lie/cartan_subalgebra.lean

added theorem lie_subalgebra.mem_normalizer_iff'

added theorem lie_subalgebra.normalizer_eq_self_iff

Modified src/algebra/lie/subalgebra.lean

added theorem lie_subalgebra.neg_mem_iff

Modified src/algebra/lie/submodule.lean

added theorem lie_submodule.mk_eq_zero

added theorem lie_submodule.to_submodule_eq_coe