The below is the projects own take on that question:
"Frege gives you the opportunity to use your skills on the JVM. Most idiomatic Haskell code will run in Frege unmodified or with only minimal, obvious adaptions. Even more important: you can bring your purely functional problem solution strategies to your Java projects."
"Frege gives you the opportunity to use your skills on the JVM. Most idiomatic Haskell code will run in Frege unmodified or with only minimal, obvious adaptions. Even more important: you can bring your purely functional problem solution strategies to your Java projects."