Please see my explanatory reply where I described the key components of FP. I don't deny that there are lots of languages people call functional or multi-paradi

Please see my explanatory reply where I described the key components of FP. I don't deny that there are lots of languages people call functional or multi-paradigm that are in fact not functional or are only borrowing some ingredients without providing enough to follow the paradigm. When we define a paradigm, we are defining the core abstraction of how programs are constructed. In FP, that would be composing functions, hence the name. We FPers borrow or share concepts with OOers. The State monad (our basic building block of holding state) is very much like OO method chaining for example. But those similarities do not make either equatable with the other.