Theorem mem_nonUnitalSubalgebraOfNonUnitalSubsemiring

Modification history

2023-07-03 00:43
Mathlib/Algebra/Algebra/NonUnitalSubalgebra.lean
feat: define `NonUnitalSubalgebra` and develop basic API (#5512) …
Added mem_nonUnitalSubalgebraOfNonUnitalSubsemiringView on Github →