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第七章 "自由定理" 中的 "free" 是否应该翻译为 "免费的" ? #55

@yxd0379

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@yxd0379
  1. 已经google过,除本文之外没有自由定理的解释
  2. 文中提到 Wadler 关于此主题的论文

论文标题:theorems for free
摘要:From the type of a polymorphic function we can derive a theorem that it satisfies. Every Function of the same type satisfies the same theorem. This provides a free source of useful theorems, courtesy of Reynolds' abstraction theorem for the polymorphic lambda calculus.

  1. 原文标题:Free as in Theorem 可以翻译成免费的
  2. 原文:"不用写一行代码你也能理解这些定理,它们直接来自于类型本身。" 译为免费的更符合上下文

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