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Theorem
DirectSum.isInternal_ne_bot_iff
Modification history
2023-11-20 21:32
Mathlib/Algebra/DirectSum/Module.lean
feat: if a Lie algebra has non-degenerate Killing form then its Cartan subalgebras are Abelian (#8430) …
Added
DirectSum.isInternal_ne_bot_iff
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