numericpeano (hackage): Value-level lazy Peano numbers for all your proof-theoretic and infinity-related needs. The features are: 1) natural and integral numbers (N and Z); 2) lazy infinities; and 3) instances for all relevant typeclasses, meaning that Peano arithmetic can be used in generic functions without extra hassle. The implementation is naive: a number of magnitude n may consume O(n) bytes of memory.
Keywords: apache|library|math