> How am I going to express the expectation that something is prime? With the following closed API: Obviously not a closed API since the playground only gives

> How am I going to express the expectation that something is prime? With the following closed API: Obviously not a closed API since the playground only gives you one module, but I wrote an example on the Haskell playground: https://play.haskell.org/saved/gRsNcCGo https://play.haskell.org/saved/gRsNcCGo