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RootPairing.pairing_eq_zero_of_add_notMem_of_sub_notMem
Modification history
2025-10-11 23:02
Mathlib/LinearAlgebra/RootSystem/Finite/Lemmas.lean
feat: invariant dual submodules define Lie ideals (#29979) …
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RootPairing.pairing_eq_zero_of_add_notMem_of_sub_notMem
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