In the introduction, we discuss the inadequate reception of Polish scientists and scholars in the world of scientific and academic ideas. This nonreception can be attributed to the tragic historical situation of the country – the Hecatomb suffered by Poland. The philosophical logic heritage of Jerzy Łoś is one such forgotten discovery. The present volume is devoted to this very heritage as well as its reception. The four works printed herein are discussed in the introduction. Although they deal with different problems and their approach to the problem varies (some are of a historical nature while others propose some scientific activities), they all have one thing in common: the use of realisation operator. The operator is a logical connecti...