4 http://hdl.handle.net/10338.dmlcz/144751 4 A proof of the independence of the Axiom of Choice from the Boolean Prime Ideal Theorem http://hdl.handle.net/10338.dmlcz/144758 A proof of the independence of the Axiom of Choice from the Boolean Prime Ideal Theorem Addition theorems for dense subspaces http://hdl.handle.net/10338.dmlcz/144757 Addition theorems for dense subspaces On complete linear Weingarten hypersurfaces in locally symmetric Riemannian manifolds http://hdl.handle.net/10338.dmlcz/144756 On complete linear Weingarten hypersurfaces in locally symmetric Riemannian manifolds Some results on $(n,d)$-injective modules, $(n,d)$-flat modules and $n$-coherent rings http://hdl.handle.net/10338.dmlcz/144755 Some results on $(n,d)$-injective modules, $(n,d)$-flat modules and $n$-coherent rings