Main concern of this essay is explanation of transition from mathematical system apriori to hermeneutical system, to Heidegger. On the base one of exegesis there is an overlapping between tow systems as conceived by Heidegger. But writer contrary to this interpretation depicts that no overlap between them. Because on the base of mathematical apriori notion, there is a static understanding and concepts in accord static rules will have to inference from it. But on the interpretation of hermeneutic apriori, many huge (...) changes take place. First Heidegger interprets understanding as Being-there. So apriori notion is based upon the existential-hermeneutic. Two, perception of the hermeneutic apriori is required conception of thrown being-in-world, means hermeneutical facticity. Three, the world has a dynamic structure so apriori notion too. And finally, Heidegger accentuates on the language and tradition as effects –meaning- giving and transfer meaning phenomenal to Being as apriori all aprioris. (shrink)