Lean4
instance nonUnitalNonAssocRing [NonUnitalNonAssocRing R] : NonUnitalNonAssocRing (ULift R) :=
{ zero := (0 : ULift R), add := (· + ·), mul := (· * ·), sub := Sub.sub, neg := Neg.neg, nsmul := AddMonoid.nsmul,
zsmul := SubNegMonoid.zsmul, add_assoc, zero_add, add_zero, neg_add_cancel, add_comm, left_distrib, right_distrib,
zero_mul, mul_zero, sub_eq_add_neg, nsmul_zero := fun _ => AddMonoid.nsmul_zero _,
nsmul_succ := fun _ _ => AddMonoid.nsmul_succ _ _, zsmul_zero' := SubNegMonoid.zsmul_zero',
zsmul_succ' := SubNegMonoid.zsmul_succ', zsmul_neg' := SubNegMonoid.zsmul_neg' }