Commit 2021-12-21 23:32 fc66d88c
View on Github →refactor(ring_theory/derivation): use weaker TC assumptions (#10952)
Don't assume [add_cancel_comm_monoid M]
, add map_one_eq_zero
as an axiom instead. Add a constructor derivation.mk'
that deduces map_one_eq_zero
from leibniz
.
Also generalize smul
/module
instances.