#### Abstract

In this paper i, j, k, n denote natural numbers. Next we state several propositions: (1) For all subsets A, B of E T such that A is Bounded or B is Bounded holds A ∩ B is Bounded. (2) For all subsets A, B of E T such that A is not Bounded and B is Bounded holds A \ B is not Bounded. (3) For every compact connected non vertical non horizontal subset C of E2… (More)