The balance of reason / Marcelo Dascal -- Desire, deliberation and action / John R. Searle -- Two basic kinds of cooperation / Raimo Tuomela -- Speech acts and illocutionary logic / John R. Searle and Daniel Vanderveken -- Communication, linguistic understanding and minimal rationality in universal grammar / Andre Leclerc -- Truth and reference / Henri Lauener -- Empirical versus theoretical existence and truth / Michel Ghins -- Michel Ghins on the empirical versus the theoretical / Bas C. van Fraassen -- Propositional identity, truth according to predication and strong implication / Daniel Vanderveken -- Reasoning and aspectual-temporal calculus / Jean-Pierre Descles -- Presupposition, projection and transparency in attitude contexts / Rob van der Sandt -- The limits of a logical treatment of assertion / Denis Vernant -- Agents and agency in branching space-times / Nuel Belnap -- Attempt, success and action generation : a logical study of intentional action / Daniel Vanderveken -- Pragmatic and semiotic prerequisites for predication / Kuno Lorenz -- On how to be a dialogician / Shahid Rahman and Laurent Keiff -- Some games logic plays / Ahti-Veikko Pietarinen -- Backward induction without tears? / Jordan Howard Sobel -- On the usefulness of paraconsistent logic / Newton C.A. da Costa, Jean-Yves Beziau, and Otavio Bueno -- Algorithms for relevant logic / Paul Gochet, Pascal Gribomont and Didier Rossetto -- Logic, randomness and cognition / Michel de Rougemont -- From computing with numbers to computing with words : from manipulation of measurements to manipulation of perceptions / Lofti Zadeh.