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by solomatov
3816 days ago
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Actually it's not that easy. Everywhere you have a type you need to proof that the expression really has the right type, and it's not just type annotation, it's a real mathematical proof. To understand the complexity of the task, try proving that insertion sort is really a sort algorithm. You write more code, and writing it will take more time than you would do in a 'normal' typed language. |
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I'd highly recommend reading Chapter 1, Section 1.3 from Type-Driven Development. The first chapter is free.
https://www.manning.com/books/type-driven-development-with-i...