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5SOCREAL 2007: International Workshop on Philosophy and Ethics of Social Reality. Sapporo, Japan, 2007-03-09/10. Session 2: Logical Dynamics of Social Interaction.
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4SOCREAL 2013 : 3rd International Workshop on Philosophy and Ethics of Social Reality 2013. Hokkaido University, Sapporo, Japan, 25-27 October 2013. Session 1 : Logic, Knowledge, and Philosophy of Language.