The first part of this essay defends reliance on truth values against those who, on nominalistic grounds, would uniformly substitute a truth predicate. I rehearse some practical advantages of working with truth values in logic. In the second part I look at several cases in which logics involve, as part of their semantics, quantification over a silent parameter, such as modal logic's quantification over worlds. In many cases, this facility produces truth values for sentences which seem neither true nor false by ``supervaluation,'' that is, by ``quantifying out'' the extra, silent argument. Logics that generate truth values for the neither-true-nor-false in this way exhibit striking differences. I consider the following: open sentences in first order logic, vague sentences, ambiguous sentences, paradoxical sentences, and future-tensed sentences in indeterministic tense logic.

For more information and abstracts, see https://www.illc.uva.nl/LaCo/CLS/

In June 2008 the ILLC will host the 3rd MARA Get-Together, an informal workshop on Multiagent Resource Allocation. Everyone, in particular ILLC staff and students, is very welcome to attend. There is no registration fee, but for organisational reasons we need to know who's coming. If you wish to attend, please let Ulle Endriss know before 28 May 2008.

For more information, see https://www.illc.uva.nl/~ulle/MARA3/.

In June 2008 the ILLC will host the 3rd MARA Get-Together, an informal workshop on Multiagent Resource Allocation. Everyone, in particular ILLC staff and students, is very welcome to attend. There is no registration fee, but for organisational reasons we need to know who's coming. If you wish to attend, please let Ulle Endriss know before 28 May 2008.

For more information, see https://www.illc.uva.nl/~ulle/MARA3/.

The talk will present and explain basic notions of interactive epistemology that were developed by game theorists, logicians and computer scientists.

For more information, please contact f.veltman at uva.nl.

Saturday June 7 Martin Coath (Plymouth University; FameLab finalist) and Henkjan Honing (University of Amsterdam; Nominee for the Academic Year Prize) will combine forces in interactively demonstrating to a general audience how we hear and interpret sound and music, using recent results from the European EmCAP project on music cognition.

For more information, see http://www.cheltenhamfestivals.com/whats_on/event_detail.html?id=2074.

Design is about building a definition for an object that is yet to exist. The construction of such a definition requires a particular type of reasoning process which is different from usual ones such as search, optimization or theorem proving. In this talk, we will present a theory of design reasoning called Concept-Knowledge (CK) theory. CK theory captures some of the fundelmental properties of design reasoning based on the distinction and interaction between two spaces; a knowledge space K, containing, propositions whose logical status are known by a designer, and a concept space, which contains propositions that are undecidable in K space. The undecidability of concepts is a source for creativity and it allows new types of definitions for unprecedented objects.

CK theory is currently a very active research topic in a variety of context such as organization theory and design education. On the other hand more recent efforts explore logical and mathematical models of the theory. During the talk, after presenting the theory informally, we will discuss three of such models: 1) The relationship between ZF set theory, Cohen's notion of Forcing and CK type design reasoning (Hatchuel, Weil, 2007) 2) A model of CK theory based on NAL (non-axiomatic logic), a syllogistic term logic (Kazakci, Hatchuel and Weil, 2008) 3) A model of CK theory based on Intuionistic Logic (Kazakci, Upcoming)

For more information, please contact juckelma at science.uva.nl

Note: this lecture was originally scheduled for 14 May 2008.
The Logic Tea homepage can be found at https://www.illc.uva.nl/logic_tea/. For more information, please contact Joel Uckelmann (juckelma at science.uva.nl) or Edgar Andrade (E.J.AndradeLotero at uva.nl).

For more information, see https://www.illc.uva.nl/GLoRiClass/index.php?page=4

For abstracts and more information, see http://ilps.science.uva.nl/Seminar/seminar08-1.html#Jun13.

For abstracts and more information, see http://www.math.uu.nl/people/jvoosten/seminar.html

For more information, see here or https://www.illc.uva.nl/~ulle/seminar/ or contact Ulle Endriss (ulle at illc.uva.nl).

For abstracts and more information, see https://www.illc.uva.nl/dip/.

For abstracts and more information, see http://ilps.science.uva.nl/Seminar/seminar08-1.html#Jun20.

Do not Erase. . . wait for Meaning is an <InstallationPackage> by TineWilde offering a new perspective on the art of installation as a result of a trans-disciplinary PhD research project carried out at the University of Amsterdam.

Tine Wilde investigates facts and values concerning social practices and cultural attitudes, worked out in what she calls an InstallationPackage. An InstallationPackage consists of one or more installations exploring a particular concept from different perspectives. In this exhibition the point of departure is the philosopher's room, in which the concept reflexive dynamics is central. On the one hand this reflexive dynamics points to the dynamic relation between the various parts of the room. On the other it refers to an emotional space that gives the viewer the opportunity to take a reflexive distance by means of a subtle play of colours. In this way, the installation becomes a poem with proportion.

The exhibition will be officially opened by Martin Stokhof at the opening reception on Saturday 21 June 2008, 8-10 pm: the exhibition will run from Sunday 22 June until Sunday 13 July 2008. For more information, see http://www.tinewilde.com/Arti2008.htm

Do not Erase. . . wait for Meaning is an <InstallationPackage> by TineWilde offering a new perspective on the art of installation as a result of a trans-disciplinary PhD research project carried out at the University of Amsterdam.

Tine Wilde investigates facts and values concerning social practices and cultural attitudes, worked out in what she calls an InstallationPackage. An InstallationPackage consists of one or more installations exploring a particular concept from different perspectives. In this exhibition the point of departure is the philosopher's room, in which the concept reflexive dynamics is central. On the one hand this reflexive dynamics points to the dynamic relation between the various parts of the room. On the other it refers to an emotional space that gives the viewer the opportunity to take a reflexive distance by means of a subtle play of colours. In this way, the installation becomes a poem with proportion.

The exhibition will be officially opened by Martin Stokhof at the opening reception on Saturday 21 June 2008, 8-10 pm: the exhibition will run from Sunday 22 June until Sunday 13 July 2008. For more information, see http://www.tinewilde.com/Arti2008.htm

Do not Erase. . . wait for Meaning is an <InstallationPackage> by TineWilde offering a new perspective on the art of installation as a result of a trans-disciplinary PhD research project carried out at the University of Amsterdam.

Tine Wilde investigates facts and values concerning social practices and cultural attitudes, worked out in what she calls an InstallationPackage. An InstallationPackage consists of one or more installations exploring a particular concept from different perspectives. In this exhibition the point of departure is the philosopher's room, in which the concept reflexive dynamics is central. On the one hand this reflexive dynamics points to the dynamic relation between the various parts of the room. On the other it refers to an emotional space that gives the viewer the opportunity to take a reflexive distance by means of a subtle play of colours. In this way, the installation becomes a poem with proportion.

The exhibition will be officially opened by Martin Stokhof at the opening reception on Saturday 21 June 2008, 8-10 pm: the exhibition will run from Sunday 22 June until Sunday 13 July 2008. For more information, see http://www.tinewilde.com/Arti2008.htm

Do not Erase. . . wait for Meaning is an <InstallationPackage> by TineWilde offering a new perspective on the art of installation as a result of a trans-disciplinary PhD research project carried out at the University of Amsterdam.

Tine Wilde investigates facts and values concerning social practices and cultural attitudes, worked out in what she calls an InstallationPackage. An InstallationPackage consists of one or more installations exploring a particular concept from different perspectives. In this exhibition the point of departure is the philosopher's room, in which the concept reflexive dynamics is central. On the one hand this reflexive dynamics points to the dynamic relation between the various parts of the room. On the other it refers to an emotional space that gives the viewer the opportunity to take a reflexive distance by means of a subtle play of colours. In this way, the installation becomes a poem with proportion.

The exhibition will be officially opened by Martin Stokhof at the opening reception on Saturday 21 June 2008, 8-10 pm: the exhibition will run from Sunday 22 June until Sunday 13 July 2008. For more information, see http://www.tinewilde.com/Arti2008.htm

Do not Erase. . . wait for Meaning is an <InstallationPackage> by TineWilde offering a new perspective on the art of installation as a result of a trans-disciplinary PhD research project carried out at the University of Amsterdam.

Tine Wilde investigates facts and values concerning social practices and cultural attitudes, worked out in what she calls an InstallationPackage. An InstallationPackage consists of one or more installations exploring a particular concept from different perspectives. In this exhibition the point of departure is the philosopher's room, in which the concept reflexive dynamics is central. On the one hand this reflexive dynamics points to the dynamic relation between the various parts of the room. On the other it refers to an emotional space that gives the viewer the opportunity to take a reflexive distance by means of a subtle play of colours. In this way, the installation becomes a poem with proportion.

The exhibition will be officially opened by Martin Stokhof at the opening reception on Saturday 21 June 2008, 8-10 pm: the exhibition will run from Sunday 22 June until Sunday 13 July 2008. For more information, see http://www.tinewilde.com/Arti2008.htm

Do not Erase. . . wait for Meaning is an <InstallationPackage> by TineWilde offering a new perspective on the art of installation as a result of a trans-disciplinary PhD research project carried out at the University of Amsterdam.

Tine Wilde investigates facts and values concerning social practices and cultural attitudes, worked out in what she calls an InstallationPackage. An InstallationPackage consists of one or more installations exploring a particular concept from different perspectives. In this exhibition the point of departure is the philosopher's room, in which the concept reflexive dynamics is central. On the one hand this reflexive dynamics points to the dynamic relation between the various parts of the room. On the other it refers to an emotional space that gives the viewer the opportunity to take a reflexive distance by means of a subtle play of colours. In this way, the installation becomes a poem with proportion.

The exhibition will be officially opened by Martin Stokhof at the opening reception on Saturday 21 June 2008, 8-10 pm: the exhibition will run from Sunday 22 June until Sunday 13 July 2008. For more information, see http://www.tinewilde.com/Arti2008.htm

On Thursday 26 June 2008 the EG lisaison will organize a training for scientists who are about to submit an application for a Marie Curie grant. This training aims to teach you how to look at your proposal from a pragmatic perspective. Emphasis will lie on how the evaluator looks at your proposal so this can be taken into account when you write your own proposal.

For more information, see http://www.senternovem.nl/egl/agenda/

For abstracts and more information, see http://ilps.science.uva.nl/Seminar/seminar08-1.html#Jun20.

Do not Erase. . . wait for Meaning is an <InstallationPackage> by TineWilde offering a new perspective on the art of installation as a result of a trans-disciplinary PhD research project carried out at the University of Amsterdam.

Tine Wilde investigates facts and values concerning social practices and cultural attitudes, worked out in what she calls an InstallationPackage. An InstallationPackage consists of one or more installations exploring a particular concept from different perspectives. In this exhibition the point of departure is the philosopher's room, in which the concept reflexive dynamics is central. On the one hand this reflexive dynamics points to the dynamic relation between the various parts of the room. On the other it refers to an emotional space that gives the viewer the opportunity to take a reflexive distance by means of a subtle play of colours. In this way, the installation becomes a poem with proportion.

The exhibition will be officially opened by Martin Stokhof at the opening reception on Saturday 21 June 2008, 8-10 pm: the exhibition will run from Sunday 22 June until Sunday 13 July 2008. For more information, see http://www.tinewilde.com/Arti2008.htm

On June 27 2008, the Cognitive Science Center Amsterdam of the University of Amsterdam will organize a symposium chaired by visiting professor McClelland in which a number of prominent European researchers will give presentations on their work within the general area of connectionist modeling. Speakers will include Eric Postma, Axel Cleeremans, Mike Page, Bob French and Jaap Murre. At the end of the symposium, professor McClelland will comment on the various lectures. The symposium will an excellent overview of the current status of connectionist modeling.

For more information, please contact J.J.W.vanderMeer at uva.nl

Do not Erase. . . wait for Meaning is an <InstallationPackage> by TineWilde offering a new perspective on the art of installation as a result of a trans-disciplinary PhD research project carried out at the University of Amsterdam.

Tine Wilde investigates facts and values concerning social practices and cultural attitudes, worked out in what she calls an InstallationPackage. An InstallationPackage consists of one or more installations exploring a particular concept from different perspectives. In this exhibition the point of departure is the philosopher's room, in which the concept reflexive dynamics is central. On the one hand this reflexive dynamics points to the dynamic relation between the various parts of the room. On the other it refers to an emotional space that gives the viewer the opportunity to take a reflexive distance by means of a subtle play of colours. In this way, the installation becomes a poem with proportion.

The exhibition will be officially opened by Martin Stokhof at the opening reception on Saturday 21 June 2008, 8-10 pm: the exhibition will run from Sunday 22 June until Sunday 13 July 2008. For more information, see http://www.tinewilde.com/Arti2008.htm

Do not Erase. . . wait for Meaning is an <InstallationPackage> by TineWilde offering a new perspective on the art of installation as a result of a trans-disciplinary PhD research project carried out at the University of Amsterdam.

Tine Wilde investigates facts and values concerning social practices and cultural attitudes, worked out in what she calls an InstallationPackage. An InstallationPackage consists of one or more installations exploring a particular concept from different perspectives. In this exhibition the point of departure is the philosopher's room, in which the concept reflexive dynamics is central. On the one hand this reflexive dynamics points to the dynamic relation between the various parts of the room. On the other it refers to an emotional space that gives the viewer the opportunity to take a reflexive distance by means of a subtle play of colours. In this way, the installation becomes a poem with proportion.

The exhibition will be officially opened by Martin Stokhof at the opening reception on Saturday 21 June 2008, 8-10 pm: the exhibition will run from Sunday 22 June until Sunday 13 July 2008. For more information, see http://www.tinewilde.com/Arti2008.htm

Do not Erase. . . wait for Meaning is an <InstallationPackage> by TineWilde offering a new perspective on the art of installation as a result of a trans-disciplinary PhD research project carried out at the University of Amsterdam.

Tine Wilde investigates facts and values concerning social practices and cultural attitudes, worked out in what she calls an InstallationPackage. An InstallationPackage consists of one or more installations exploring a particular concept from different perspectives. In this exhibition the point of departure is the philosopher's room, in which the concept reflexive dynamics is central. On the one hand this reflexive dynamics points to the dynamic relation between the various parts of the room. On the other it refers to an emotional space that gives the viewer the opportunity to take a reflexive distance by means of a subtle play of colours. In this way, the installation becomes a poem with proportion.

The exhibition will be officially opened by Martin Stokhof at the opening reception on Saturday 21 June 2008, 8-10 pm: the exhibition will run from Sunday 22 June until Sunday 13 July 2008. For more information, see http://www.tinewilde.com/Arti2008.htm

Formal approaches to rational individual and interactive decision making is a dynamic and interdisciplinary field of research. The workshop series in Decisions, Games & Logic (DGL) started in 2007 and aims at fostering interactions between graduate students, post-docs and senior researchers from economics, logic and philosophy. Three invited speakers deliver lectures on decision theory, game theory and logic and the connections of these fields. Graduate students and young researchers present their work in both formal and informal sessions.

For more information, see http://www.meansandends.com/workshop08/ or contact dgl08 at science.uva.nl.