Theorem RootPairing.Base.not_nonneg_iff_neg_of_sum_mem_range_root

Modification history

2025-07-17 18:28
Mathlib/LinearAlgebra/RootSystem/Base.lean
feat: add root system induction principle equivalent to connectedness of Dynkin diagram (#26965) …
Added RootPairing.Base.not_nonneg_iff_neg_of_sum_mem_range_rootView on Github →