Abstract
The idea of difference sequence sets X(Delta) = {x = (x(k)) : Delta x is an element of X} with X = l(infinity), c and c(0) was introduced by Kizmaz [10]. Mursaleen and Mohiuddine [13] defined the idea of probabilistic normed space (PNS) and the ideal convergence in PNS. Motivated by the above two concepts, we in this paper introduce the notion of difference I-convergent sequence in PNS and study the elementary properties of this convergence.