If the instrument by which an alteration is made in the testator's interest in a thing previously disposed of by his will, expresses his intent that it shall be a revocation, or if it contains provisions wholly inconsistent with the terms and nature of the testamentary disposition, it operates as a revocation thereof, unless such inconsistent provisions depend on a condition or contingency, by reason of which they do not take effect. R.L. 1910, Sec. 8369. R.L.1910, § 8369.
Oklahoma Legal Code