*** apologies for multiple copies *** First International Conference on Computational Logic, CL2000 Imperial College, London, UK 24th to 28th July, 2000 http://www.doc.ic.ac.uk/cl2000/ Due largely to the difficulties caused by related conferences having submission dates at about the same time, the submission deadline for CL2000 is postponed to Monday 21st February, 2000. If you wish to take advantage of this extension, you are asked to email the Chair of the Stream to which you intend to submit the title, author(s), abstract, and keywords for your paper *as soon as possible*. Highlights of the conference include 8 invited speakers, 12 tutorials, and a strong workshop programme held in-line with the conference. Collocating with CL2000 are DOOD2000, LOPSTR2000, and ILP2000. Full details about the conference, including the email addresses of the Stream Chairs, are given at the above URL.