copromise. it's like a compromise but also the dual of a promise. is this anything
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Conversation
if a promise assigns responsibilities to people then a copromise assigns copeople to coresponsibilities
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I was thinking javascript promises but this is good too
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El,,,,
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promises are close to a monad so... what's a comonad
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a thing you can extract and duplicate, they're useful in modelling e.g. cellular automata
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extract :: w a -> a
is the dual of
pure :: a -> m a
(w is the dual of m, ofc)
and
duplicate :: w a -> w (w a)
is the dual of
join :: m a -> m (m a)
the dual of (>>=) is called extend
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ohh, so:
extend :: (w a -> b) -> w a -> w b
is the dual of
bind :: m a -> (a -> m b) -> m b
now wondering what programming with codo would look like… is that a thing?
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Yep, programming with codo-notation is a possibility, see "A Notation for Comonads" (linked below) for examples.
cs.kent.ac.uk/people/staff/d
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