PERIPATETIC SEMINAR ON SHEAVES AND LOGIC 60th meeting - Preliminary announcement The sixtieth meeting of the PSSL will be held in Cambridge over the weekend of 27-28 January 1996. The seminar welcomes talks using or addressing category theory or logic, either explicitly or implicitly, in the study of any aspect of mathematics or science. If you wish to attend, please return the form below to Peter Johnstone, either electronically or by ordinary mail. We shall attempt to arrange accommodation in College guest rooms (or, failing that, in local guest houses) for those who request it by 17 January 1996. A provisional programme will be circulated in the week before the meeting. Martin Hyland Peter Johnstone P.S. -- This announcement is being sent out via the `categories' mailing list, and in hard copy to a number of people who are known not to receive electronic mail. If you know of anyone who would like to come to the meeting, but who has not received the announcement, please feel free to copy it to him/her. ................................................................................ Please return to Dr P.T. Johnstone, DPMMS, 16 Mill Lane, Cambridge CB2 1SB (e-mail: ptj@pmms.cam.ac.uk) by 17 January 1996. I intend to come to the 60th meeting of the PSSL * I should like to give a talk entitled lasting about minutes. * Please reserve accommodation for Friday/Saturday/Sunday night(s). Name : Address : E-mail : * Delete whatever does not apply.