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Def subsemiring.inclusion

Modification history

2022-04-27 23:52
src/ring_theory/subsemiring/basic.lean
fix(ring_theory/subsemiring/basic): make `inclusion` a `ring_hom`, not a `monoid_hom` (#13746)
Modified subsemiring.inclusionView on Github →
2020-05-29 06:50
src/ring_theory/subsemiring.lean
feat(ring_theory): define subsemirings (#2837) …
Added subsemiring.inclusionView on Github →