Dear category theorists, as previously announced, we are holding the 100th PSSL in Cambridge on 21-22 May 2016. Dana Scott will be here, giving also the Mordell Lecture on Friday 20 May 5pm, "Why Mathematical Proof?". Participants can sign up on our website https://www.dpmms.cam.ac.uk/~jg352/PSSL100/pssl100.html Deadline for proposing a talk is 6 May. The conference dinner will be on Saturday evening in Newnham College, and will cost £40 per person. Newnham have very kindly given us some money toward the conference, so we can offer all students a reduced price for the conference dinner. (The exact reduction will have to depend on how many students there are.) If any other participants want to make a case for the reduced dinner price, please feel free to contact Julia (jg352@cam.ac.uk). Best wishes, Julia -- Dr Julia Goedecke Newnham College Sidgwick Avenue Cambridge CB3 9DF jg352@cam.ac.uk [For admin and other information see: http://www.mta.ca/~cat-dist/ ]