6p. Introduction When Programmers Say “I Need Dynamic/Static Typing”, They Really Mean I want type inference I want contracts I want (coercive) subtyping I want Generics I want (unsafe) covariance I want ad-hoc relationships and prototype …

目次。 Introduction The data type of lists Catamorphisms Anamorphisms Hylomorphisms Paramorphisms Algebraic data types Functors Recursive types Recursion Schemes Program Calculation Laws Catamorphisms Anamorphisms Hylomorphisms Relating ca…

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