inverse image - if f is a mapping on a set X and N is a subset of the range of f, then the set {x: f(x) N} = f-1(N) is called the inverse image of the set N. Also, PREIMAGE. ;
дс тдрлими цюлютдажкию дроемжки аиакиохдйис лидр
http://www.harcourt.com/dictionary/def/5/3/7/6/5376200.html;
