The Truth Theory of Tarski and Popper

Abstract：The concept of truth is one of the core areas of Philosophy. For the understanding of the con- cept, there are many different opinions from different schools. There mainly have the correspondence theory of truth, the coherence theory of truth, the redundancy theory of truth, the pragmatism theory of truth and so on. In the discussion of whether logic truth reflected objective reality in the logic philoso- phy, the viewpoint that splits the logic truth from the fact truth has ever become the mainstream. Tars- ki has re-defined the truth on the semantics, believing that truth should be defined to meet the two con- ditions: in essence, it is appropriate, and in the form, it is correct. His point of view is considered to re- establish the correspondence theory of truth. Popper supports Tarski's concept of truth, and he had found the theoretical basis for his own truth theory and the realism.