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Theorem ring_equiv.image_eq_preimage

Modification history

2020-03-14 17:09
src/data/equiv/algebra.lean
refactor(data/equiv/algebra): split (#2147) …
Modified ring_equiv.image_eq_preimageView on Github →
2019-09-26 07:39
src/data/equiv/algebra.lean
refactor(data/equiv/algebra): rewrite `ring_equiv` using bundled homs (#1482) …
Added ring_equiv.image_eq_preimageView on Github →