Neb. Rev. Stat. § 30-2203 : Decedents' Estates; Protection Of Persons And Property — Probate Jurisdiction — Short Title, Construction, General Provisions —2203 - Supplementary general principles of law applicable TEXT PDF Unless displaced by the particular provisions of this code, the principles of law and equity supplement its provisions. Neb. Rev. Stat. § 30-2203 Laws 1974, LB 354, § 3, UPC § 1-103.