Abstract

We implemented a type-class for pretty-printing, similar to Haskell’s Show-class. Moreover, we provide instantiations for Isabelle/HOL’s standard types like bool, prod, sum, nats, ints, and rats. It is further possible, to automatically derive pretty-printer for arbitrary user defined datatypes similar to Haskell’s “deriving Show”.

BibTeX

@article{CSRT-AFP14a,
  author  = {Christian Sternagel and René Thiemann},
  title   = {Haskell's {Show}-Class in {Isabelle/HOL}},
  journal = "Archive of Formal Proofs",
  month   = jul,
  year    = 2014,
  note    = {\url{https://www.isa-afp.org/entries/Show.html},
            Formal proof development},
  ISSN    = {2150-914x},
}