1 “... in the following pages is to reconstruct the system behind the often rather disconnected commentary, and to show...”

2 “... typographical errors and the like. The only extensive changes in wording occur in the last few pages of Chapter...”

3 “... Tarski, and many others. In his lifetime LeSniewski published only a few hundred pages. He produced many...”

4 “... 100 pages swelled into a bulky volume almost five times bigger. The issues have remained practically...”

5 “... Colloquium '90, Volume 2 of Lecture Notes in Logic, pages 66-68, Springer, Berlin, 1993), in an attempt...”