Oncul AltindagSule Ayar OzbalYong Ho YonAltindag, OnculAyar Ozbal, SuleYon, Yong Ho2025-10-0620172147-1762https://gcris.yasar.edu.tr/handle/123456789/6536In this paper we introduced the notion of symmetric bi-derivations on lattice implication algebra and investigated some related properties. Also we characterized the FixD (L) and KerD (L) by symmetric bi-derivations. Additionally we proved that if D is a symmetric bi-derivation of a lattice implication algebra every filter F is D-invariant.Englishinfo:eu-repo/semantics/closedAccessLattice implication algebras, Derivation, Self-distributive, Filter, Normal filter, KerD, FixDFilterFixdLattice Implication AlgebrasDerivationNormal FilterKerdSelf-distributiveArticle