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Theorem submodule.mul_le_mul

Modification history

2022-05-10 11:03
src/algebra/algebra/operations.lean
feat(algebra/module/submodule_bilinear): add `submodule.map₂`, generalizing `submodule.has_mul` (#13709) …
Modified submodule.mul_le_mulView on Github →
2019-04-03 05:37
src/ring_theory/algebra_operations.lean
feat(ring_theory/algebra_operations): submodules form a semiring (#856)
Added submodule.mul_le_mulView on Github →