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Theorem subsemiring.mul_mem

Modification history

2022-04-10 01:48
src/ring_theory/subsemiring/basic.lean
feat(group_theory): use generic `subobject_class` lemmas (#11758) …
Deleted subsemiring.mul_memView on Github →
2020-05-29 06:50
src/ring_theory/subsemiring.lean
feat(ring_theory): define subsemirings (#2837) …
Added subsemiring.mul_memView on Github →