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I agree with you. I just wanted to point out, that the relaxed booleans do not have to be a property of the language, but can be done in a library. (Hey, even `if' could be a library function in Haskell. (And really, should be.))

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You also have to supply alternatives to && || and not; that still leaves functions (e.g. filter) and constructors with Boolean parameters. Whether you're fighting the language or the standard library is a moot point: you're fighting it instead of working with it.

> You also have to supply alternatives to && || and not; that still leaves functions (e.g. filter) and constructors with Boolean parameters.

There's some lifting approaches that construct those functions mostly automatically for you, as wrappers around the base functions on Booleans.

Yes, but then you're relying on pattern-matching to define if. PM is not better than if, it's just different.

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