> a prover-adjacent language No need to go that far, you just need an ML inspired language with subtyping. https://kotlinlang.org/api/latest/jvm/stdlib/kotlin

> a prover-adjacent language No need to go that far, you just need an ML inspired language with subtyping. https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-nothing.html https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-nothing... https://www.scala-lang.org/api/2.13.6/scala/Nothing.html https://www.scala-lang.org/api/2.13.6/scala/Nothing.html https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/ https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/ https://www.scala-lang.org/api/2.13.6/scala/Unit.html https://www.scala-lang.org/api/2.13.6/scala/Unit.html