I was sorry not to be at the Calais meeting the other week and had hoped to have the paper Aspects of slice stability in Locale Theory http://www.christophertownsend.org/Documents/SliceStability_v30.pdf ready for it. This paper proves that a particular axiomatic approach to locale theory is slice stable and then uses this slice stability to prove some known locale theory/topos theory results. All the results are known (aside from a conjecture on localic subgroupoids) so it is really an investigation into this particular axiomatisation rather than a presentation of new results. It gives what I think is a novel proof of the well known slice stability result: Loc/Y = Loc_Sh(Y). Feedback is welcome. For example, I have always attributed the result Loc/Y = Loc_Sh(Y) to Joyal and Tierney. Am I right? Regards, Christopher