(Prof. Dr. Ghassan Adnan Qahtan), a lecturer in the Department of Mathematics – College of Education for Pure Sciences at the University of Karbala, was a member of the discussion committee for a master’s thesis at the University of Wasit / College of Education for Pure Sciences by the student (Ahmed Hussein Wajaan Al-Aidi), which was titled (Astudy of New Classes of Closed Sets and Its Application in Topological Spaces). The discussion ended with the consolidation of valuable information by the committee in the thesis. The discussion of the student’s thesis was accepted with a grade of excellence.