60 ideas in logical positivists dual on the one hand admitting the correctness of their interest on the other hand I doubt the truth in the efficiency of their theory Paper in his work 34 years the logic of scientific research proposed an alternative concept of science here we are dealing with the philosophy of science in its pure form and we can say that with this work begins the development of postpositivism popper suggested in the first alternative to verificationism a new new principle of demarcation Yes a new principle of demarcation which called falsification According to popper knowledge is not confirmed refutation and this criterion is more successful since the operation of refutation is final in difference from the confirmation operation can be confirmed as many times as necessary including the false theory of the surface is enough or you need a particular popper cited examples of aphorisms that are constantly constantly confirmed by practice, but at the same time we can not read it scientifically that the state is absolutely true and Marxism is a theory that disguises itself as scientific those are not because they do not come up with a raised visor they do not give as a puppet said a potential forger of them do not stick out levers for which they can Slippery throats so unscientific 2 its idea is that scientific work is aimed at obtaining new facts not on building new theories a to solve problems discussing the ideas of Karl Popper