Author/Authors :
Tawfiq, L.N.M. Baghdad University - College of Education -Ibn Al-Haitham, Iraq , Niama, N.M. Baghdad University - College of Science for Women, Iraq
Abstract :
In this paper, The notion of. Threshold relations by using resemblance relation are introduced. To get a similarity relation from a resemblance relation R, we must build the transitive closure  of the relation R
