On the Question of Validity of the Anthropic Principles
  During the last centuries of human history, many questions was repeated in connection with the great problems of the existence and origin of human beings, and also of the Universe. The old questions of common sense and philosophy have not been solved in spite of the indisputable results of modern natural sciences. Recently the so-called anthropic principles show that these questions are still present.   We investigated some important results of the modern cosmology and their consequences with respect to the corresponding questions of philosophy and logic. After a short conceptual introduction there are two baselines. It is showed first how Goedel's theroem affects the foundation of anthropic principles. Our train of thought shows that Goedel's incompleteness theorem may deny some efforts claiming that anthropic principles can be ruled out. After this in the Appendix we touch the branch of questions that are connected with the philosophical aspects of anthropic principles and the multiple-world hypothesis. Here we investigated those formulae of quantum theory, which are supposed to be the ground for the theory of many worlds-hypothesis. 
Zs. Hetesi, B. Bal\'azs