“…In addition, the semi-infinite programming problems, the optimization with an infinite number of constraints, have been recently studied by many authors; see, e.g., [11,12,13,14,15,16,17,18,19,20] and the references therein. Employing the Clarke subdifferentials, the KKT sufficient optimality conditions for nonsmooth semi-infinite programming problems with vanishing constraints were investigated in [21]. The papers [22,23,24] investigated KKT necessary and sufficient optimality conditions and duality for smooth semi-infinite programming problems with vanishing constraints.…”