[Aware and cooperative reduction].

The aim of this work is to address the question of reduction in the scientific method, to evaluate its legitimacy as well as its pro and contra from an epistemological point of view. In the first paragraph we classify some kinds of reductionism, analysing their presuppositions and epistemological status and showing some examples of scientific reduction. The presentation includes a classificatory table that shows some of the different forms of biological reductionism. In the second paragraph we study the epistemology of science starting from its modern beginning: the Vienna Circle, focusing on the meaning of methodological reductionism. What did it mean for science to define itself mainly as method, which effects did this new concept of science have on methodology and what kind of problems did this movement bring about. In the third paragraph we examine the reactions triggered by methodological reductionism, we analyze the theoretical consistency of these answers, trying to offer a balanced view. We show how complexity can be seen as a paradigm of the anti-reductionism effort, and we study its epistemological basis. In the fourth paragraph we outline our operative proposal: the reduction that is both aware and cooperative. We point out the main reasons why science cannot avoid being reductive in some way, and therefore how we need to deal with this feature in order to prevent it to degenerate into reductionism. We show some examples of this new proposal taken from the practical realm and from literature, where it is possible to discern the spirit of this alternative methodology.