The title proposed aims at further extending - especially by strengthening the interdisciplinary aspects - some basic open questions of the relationships between logic, reasoning and cognition, with three goals that are shared by all the local teams and studied following different but integrated perspectives: a) the first features of a groundwork research project on reasoning and cognition; b) the advanced study of limited and uncertain cognition; c) the analysis of prescriptive rationality in presence of limited resources. Starting from the motto “there is no ought without a can”, the main aim of the Milan unit will be that of investigating the logical and methodological foundations of a notion of “prescriptive” rationality. This latter aims at providing agents, be them human or artificial, with a set of norms of rationality which take into account the agent's own limited resources. We foresee several applications across distinct areas including: computational logic, artificial intelligence, cognitive science.