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Theorem category_theory.abelian.epi_of_epi_of_epi_of_mono

Modification history

2021-07-12 07:00
src/category_theory/abelian/diagram_lemmas/four.lean
feat(category_theory/abelian): the five lemma (#8265)
Added category_theory.abelian.epi_of_epi_of_epi_of_monoView on Github →