Theorem Subsemiring.one_mem_toNonUnitalSubsemiring

Modification history

2023-09-12 09:41
Mathlib/Algebra/Algebra/Subalgebra/Unitization.lean
feat: maps from the unitization of non-unital subobjects of unital algebras (#6372) …
Added Subsemiring.one_mem_toNonUnitalSubsemiringView on Github →
2023-08-22 22:24
Mathlib/Algebra/Algebra/Subalgebra/Unitization.lean
revert: #5602 (#6717) …
Deleted Subsemiring.one_mem_toNonUnitalSubsemiringView on Github →
2023-08-04 08:48
Mathlib/Algebra/Algebra/Subalgebra/Unitization.lean
feat: maps between the unitization of a non-unital subalgebra and its `Algebra.adjoin` (#5602) …
Added Subsemiring.one_mem_toNonUnitalSubsemiringView on Github →