This can be seen as liftM2 on the reader monad ((->) r):
(.&.) = liftM2 (&&)
Thanks to those who pointed out this.
I think the ((->) r) reader monad is one of those I've yet to fully grasp.
#g --
At 14:45 07/07/04 -0400, Andrew Pimlott wrote:
> -- combineTest :: (Bool->Bool->Bool) -> (a->Bool) -> (a->Bool) -> (a->Bool) > combineTest :: (b->c->d) -> (a->b) -> (a->c) -> a -> d > combineTest c t1 t2 = \a -> c (t1 a) (t2 a) > > (.&.) :: (a->Bool) -> (a->Bool) -> (a->Bool) > (.&.) = combineTest (&&)
This can be seen as liftM2 on the reader monad ((->) r):
(.&.) = liftM2 (&&) t1 = (>0) .&. (<=4) ans = t1 3 == True
------------ Graham Klyne For email: http://www.ninebynine.org/#Contact
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