Mathlib v3 is deprecated. Go to Mathlib v4

Commit 2019-02-18 09:45 6b4435be

View on Github →

feat(data/polynomial): create nonzero_comm_semiring and generalize nonzero_comm_ring lemmas (#736)

Estimated changes

Modified src/algebra/ring.lean

added def nonzero_comm_semiring.of_ne

modified theorem units.coe_ne_zero

Modified src/data/polynomial.lean