English
Under a Monoid N action and compatible actions, the smul-commutativity lifts to SMulCommClass M with Units N.
Русский
При моноиде N и совместимых действиях переносится коммутативность умножения к SMulCommClass M Nˣ α.
LaTeX
$$$ [Monoid N] [SMul M \\alpha] [SMul N \\alpha] [SMulCommClass M N \\alpha] : SMulCommClass M N^\\times \\alpha$$$
Lean4
@[to_additive]
instance smulCommClass_right [Monoid N] [SMul M α] [SMul N α] [SMulCommClass M N α] : SMulCommClass M Nˣ α where
smul_comm m n := smul_comm m (n : N)