Allow base-4.11
base-4.11
Add Semigroup Element instance
Semigroup Element
r1 (10 Oct 2018): allow base-4.12
base-4.12
r2 (6 Dec 2019): allow base-4.13, hashable-1.3, semigroups-0.19
base-4.13
hashable-1.3
semigroups-0.19