Truth and certainty in Heidegger's analytic of dasein

The notion of certainty perceived traditionally is closely related to the truth as either something that describes the truth or something that is derived from it. In the article I consider the question of the understanding of certainty in Martin Heidegger's major work "Being and Time". We can find there a completely new understanding of certainty, which is the result of the change in the approach to the fundamental metaphysical questions. The article starts with describing the constitution of Dasein in order to show how the issue of certainty is related to Heidegger's attempt to raise anew the question of the meaning of Being. Certainty shows itself as belonging to the Dasein's existentialia and Is the Focus for analysis of Dasein in relation to the phenomenon of consciousness