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"Because mutation gives you tremendous flexibility ... Haskell on the other is using math to construct its patterns" - so mutation is somehow outside of math?

• smadge 9y ago
  x = 0 and x = 1. Therefore by the reflexive and transitive property of equality, 0 = 1.
  • zby 9y ago
    OK - it uses different notation where '=' is not the same as in maths. But that is kind of trivial. There are perfectly mathematical semantics of both functional and imperative languages.