∀ (R : Type u_3) (n : Type u_4) [inst : Fintype n] [inst_1 : DecidableEq n] [inst_2 : Semiring R]
  [inst_3 : PartialOrder R] [inst_4 : IsOrderedRing R],
  Matrix.rowStochastic R n =
    { carrier := {M | (∀ (i j : n), 0 ≤ M i j) ∧ M.mulVec 1 = 1}, mul_mem' := ⋯, one_mem' := ⋯ }