I wrote a piece of code like this without thinking: #lang typed/racket
(: f (All (T) (Number -> T -> T))) (define ((f x) y) (ann y T)) ... and then, after a second, was sort of flabbergasted that it worked. What's the scope of the type variable T? Apparently I can use it anywhere in the definition of the identifier that it names? That seems really fragile. Am I misunderstanding this? John
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