∀ {α : Type u_4} {M : Type u_5} [inst : AddMonoid α] [inst_1 : AddZeroClass M] [inst_2 : AddAction α M]
  [inst_3 : VAddAssocClass α M M] (c : AddCon M), c.addAction = { toVAdd := c.instVAdd, add_vadd := ⋯, zero_vadd := ⋯ }