Theorem LieDerivation.IsKilling.ad_mem_ker_killingForm_ad_range_of_mem_orthogonal
Modification history
2024-05-15 09:43
Mathlib/Algebra/Lie/Derivation/Killing.lean
feat: Cartan subalgebras contain only semisimple elements if the Killing form is non-singular and the coefficients are a perfect field. (#12712) …
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