Principle: Anyone who has more than one overdue book out on loan from the library at the same time must be fined if some of the overdue books are not children' s books and that person has previously been fined for overdue books
Application: Since three of the books that Kessler currently has out on loan from the library are overdue, Kessler must be fined
Kessler has never before been fined for overdue books, but the three overdue books that Kessler currently has out on loan from the library are months overdue.