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Theorem ring_equiv.ext_iff

Modification history

2022-02-18 15:07
src/data/equiv/ring.lean
feat(data/equiv): define `ring_equiv_class` (#11977) …
Deleted ring_equiv.ext_iffView on Github →
2020-12-14 13:16
src/data/equiv/ring.lean
feat(data/equiv): Add `congr_arg`, `congr_fun`, and `ext_iff` lemmas to equivs (#5367) …
Added ring_equiv.ext_iffView on Github →