mathlib

c44f19fe - feat(algebra/associated): simple lemmas and dot notation (#8770)

feat(algebra/associated): simple lemmas and dot notation (#8770) Introduce * `prime.exists_mem_finset_dvd` * `prime.not_dvd_one` Rename * `exists_mem_multiset_dvd_of_prime` -> `prime.exists_mem_multiset_dvd` * `left_dvd_or_dvd_right_of_dvd_prime_mul ` ->`prime.left_dvd_or_dvd_right_of_dvd_mul`