> It's about the mathematical system you use as the foundation of your semantics. I think you are conflating lexical scope with functional programming. Lexica

> It's about the mathematical system you use as the foundation of your semantics. I think you are conflating lexical scope with functional programming. Lexical scope applies even without functions, but functional programming requires functions. The difference between a scoped block and function is that functions have identity and the scoped block does not even though both benefit fully from lexical scope. What makes a language functional is whether components are composable via function. That could mean several different things, such as: lexical scope, first class citizens, recursion by reference, callbacks, and so forth. A simple way to thinking about it is things are well separated, sometimes atomically and sometimes in a taxonomical fashion, but that separation has identity. That is very different than an OOP model where things are extended and put together and that togetherness or extension has no identity.