Dear ISH member, The Center for Philosophy of Science invites you to join us for our Lunch Time Talks. Attend in person, Room 1117 on the 11th floor of the Cathedral of Learning at the University of Pittsburgh or visit our live stream on YouTube at https://www.youtube.com/channel/UCrRp47ZMXD7NXO3a9Gyh2sg. *LTT: David Wallace* Tuesday, September 10 @ 12:00 pm - 1:30 pm EDT *Title: Learning to Represent: Mathematics-first accounts of representation and their relation to natural language* *Abstract:* I develop an account of how mathematized theories in physics represent physical systems, in response to the frequent claim that any such account must presuppose a non-mathematized, and usually linguistic, description of the system represented. The account I develop contains a circularity, in that representation is a mathematical relation between the models of a theory and the system as represented by some other model — but I argue that this circularity is not vicious, in any case refers in linguistic accounts of meaning and representation, and is simply a consequence of the fact that we have no unmediated, representation-independent access to the world. This talk will also be available live streamed on: Zoom at https://pitt.zoom.us/s/97604497287 YouTube at https://www.youtube.com/channel/UCrRp47ZMXD7NXO3a9Gyh2sg. *LTT: Kevin Zollman* Friday, September 13 @ 12:00 pm - 1:30 pm EDT *Title: Authorship norms and epistemic public goods* *Abstract:* Different academic fields have different norms about how authors are listed in published papers. Some norms are insensitive to the contribution of the authors, listing them in alphabetical order or by seniority. Other norms represent the relative contributions of the authors by listing those who contributed the most first. In this paper, we develop a game theoretic model to explore the conditions under which these norms evolve and the consequences they have for collaboration. We find surprising conclusions about how the distribution of expected contribution affects the evolution of these norms. In addition, we find that all norms result in some inefficiency: they discourage some productive collaboration. Different norms discourage different types of collaboration. We explore what might be the epistemic consequence of these differences. Can’t make it in-person? This talk will available online through the following: Zoom: https://pitt.zoom.us/s/95385314177 YouTube at https://www.youtube.com/channel/UCrRp47ZMXD7NXO3a9Gyh2sg.