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@aymanosman
aymanosman / Exercise 3.4.rkt
Last active February 4, 2020 01:42
The Little Typer Exercise 3.4
#lang pie
(claim >
(-> Nat Nat Nat))
(define >
(lambda (n)
(rec-Nat n
(the (-> Nat Nat) (lambda (m) 0))
(lambda (n-1 n-1>)
(lambda (m)
@erantapaa
erantapaa / parser-ghc-7.10.hs
Created September 8, 2015 20:24
Parser Combinators by Hutton and Meijer
-- Updated for GHC 7.10
{---------------------------------------------------------------------
A HASKELL LIBRARY OF MONADIC PARSER COMBINATORS
17th April 1997
Graham Hutton Erik Meijer
University of Nottingham University of Utrecht