[Haskell-cafe] What is MonadPlus good for?
Marcin 'Qrczak' Kowalczyk
qrczak at knm.org.pl
Mon Feb 14 06:18:55 EST 2005
Josef Svenningsson <josef.svenningsson at gmail.com> writes:
> You claimed that monad transformers break the
> mzero-is-right-identity-for-bind law because they can be applied to
> IO. I say, it's not the monad transformers fault. They cannot possibly
> be expected to repair the law if they are given a faulty monad.
I agree. They as well could be said to break the core monad laws.
It's not their fault.
__("< Marcin Kowalczyk
\__/ qrczak at knm.org.pl
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