Theorem nonneg_and_nonneg_or_nonpos_and_nonpos_of_smul_nonneg

Modification history

2023-12-26 22:33
Mathlib/Algebra/Order/Module.lean
chore: Generalise monotonicity of `•` lemmas in modules (#9241) …
Modified nonneg_and_nonneg_or_nonpos_and_nonpos_of_smul_nonnegView on Github →
2023-10-30 15:05
Mathlib/Algebra/Order/Module.lean
feat: Basic lemmas about positivity of `a • b` (#7647) …
Added nonneg_and_nonneg_or_nonpos_and_nonpos_of_smul_nonnegView on Github →