Well, it's called "tautology" and it's a perfectly valid rhetorical device.

A tautology is a sentence vacuously true. This is called a pleonasm.

	▲	gizajob 2 hours ago \| parent \| next [-]
		Was about to post the same thing. It is indeed the under-appreciated pleonasm rather than a tautology.
	▲	darkwater an hour ago \| parent \| prev [-]
		Yes, mixed the two. Point stands though.