“…Based on the constructions of t-norms and t-conorms on the unit interval [0, 1], the study of the constructions of t-norms and t-conorms defined on bounded lattices has recently become important. In the papers [13,14,10,17,24,25], t-norms and t-conorms defined on bounded lattices were investigated and several methods for constructing these operators were introduced. Furthermore, by using the existence of a priori given t-norm and t-conorm, some ordinal sum constructions for t-norms and t-conorms on bounded lattices were presented in [10,17,24,25].…”