> Hello!
> Anybody has a program that converse natural expresion to inverse polac
> expresion in Haskell...
>
Assuming you mean "infix to Reverse Polish", I guess you need something that
will parse mathematical expressions. You might like to check out Happy...
it's a parser generator for Hask
Here is a small awkwardness with naming.
Example.
Defining the operation of the set cardinality, we put naturally
that it may return
FiniteCard n, n >= 0 :: Integer
InfiniteCard,
UnknownCard
But in this case, - as in many others, - t
