Preprint: Elementary Axioms for Local Maps of Toposes

Dear Category Theorists, We would like to inform you that our preprint Elementary Axioms for Local Maps of Toposes can be obtained electronically via http://www.cs.cmu.edu/afs/cs/Web/Groups/LTC/ or http://www.cs.cmu.edu/~birkedal Steven Awodey and Lars Birkedal.