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Theorem ideal.comap_le_map_of_inv_on

Modification history

2022-06-23 20:16
src/ring_theory/ideal/operations.lean
refactor(ring_theory): generalize basic API of `ring_hom` to `ring_hom_class` (#14756) …
Modified ideal.comap_le_map_of_inv_onView on Github →
2021-11-26 16:19
src/ring_theory/ideal/operations.lean
feat(ring_theory/ideal/operations): add lemmas about comap (#10418) …
Added ideal.comap_le_map_of_inv_onView on Github →