Dear Café, my monograph "Haskell for Mathematicians" has found a home online: https://hub.darcs.net/olf/haskell_for_mathematicians The intended audience of this course is mathematicians. While there are many (and excellent) introductions and complete books on Haskell available, most of them target programmers. But Haskell, despite being practically useful, is very good at modelling certain branches of mathematics. The aim of this course is to supplement the pen-and-paper mathematics with a more palpable, more interactive variant of exploring mathematical concepts. Each chapter contains exercises and is a self-contained literate haskell file that requires no package dependencies other than those included in a basic Haskell installation. Selected goodies you can find in Haskell for Mathematicians: * Constructive topology via domain semantics of Haskell * Let the compiler verify theorems of intuitionistic logic * Two implementations of exact real numbers: signed-digit and Conway's surreal numbers * Categories (of course!) * Detailed discussion of mathematical properties of monads such as commutative and affine monads * Detailed derivation of a probability measure monad that is actually affine (unlike sampling-based ones) Please use the darcs issue tracker for reporting typos, strange wording or incaccuracies. Also please don't hesitate to point me to existing work that might be worth mentioning or incorporating in the monograph. Cheers Olaf