Original sentence: As consequence of this property, Euler rotations are commutative; that is, given any frame, after performing over it any sequence of these rotations yields the same result, regardless of their order.These three rotations make a commutative subgroup into the set of rotations
Edited sentence: As consequence of this property, Euler rotations are commutative among them; that is, given any frame, after performing over it any sequence of these rotations yields the same result, regardless of their order.Nevertheless these three rotations cannot be said to be a commutative subgroup into the set of rotations, because normally only fixed-axis rotations are considered in this group