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Subjective Justification And Distributed Cognitive System

In this article I discuss the problem of subjective justification in cases of distributed agency according externalist criteria of subjective justification presented by John Greco (1999).
Distributed cognition hypothesis is concerning cases of group agent consisting of more than one individuals and external vehicles, artifacts and tools. They form united system which characteristics are different than the sum of the characteristics of its parts.In this article I suggest normative system for group agents similar Grecos theory of individual agent. ach one of the social interactions is governed by the rule of mutual nonlinear interaction. This interaction governs also the language and communication games between the members of the distributed system. It is similar the idea of Wittgenstein about the language games.
Keywords: cognitive integration, externalism, epistemology, distributed cognition, group agent, subjective justification