he acts: clearly, to truck, barter and exchange is to act in a certain way. Austrian economics adopts this way of looking at the realm of economics. It prides itself as a theory of human action. This claim seems ill-founded as long as so important a contribution as Ludwig von Mises's praxeology remains insufficiently understood. In this paper, I address Barry Smith's charge that in praxeology "other core notions, in addition to the concept of action, have been smuggled into and the theory is therefore not purely analytic'. I offer logical proofs of two cornerstone theorems of praxeology, the uneasiness theorem and the scarcity theorem, and thus provide vindication. Also, the findings support Mises's controversial claim that economics is a priori founded in action theory. Thus, Carl Menger's dream to lay foundations to economics and the other social sciences may have come true in the guise of praxeology." /> Uneasiness and scarcity - Oliva Córdoba Michael | sdvig press