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RootPairing.Base.exists_mem_span_pairingIn_ne_zero_and_pairwise_ne
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2025-08-20 19:33
Mathlib/LinearAlgebra/RootSystem/CartanMatrix.lean
feat: the Geck construction yields (finite-dimensional) semisimple Lie algebras (#27237) …
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RootPairing.Base.exists_mem_span_pairingIn_ne_zero_and_pairwise_ne
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