until -package:numeric-prelude -package:base-prelude -package:hosc -package:numhask -package:Cabal -package:singletons-base -package:streaming -package:base-compat -is:exact -package:scalpel -package:language-bash -package:hedgehog package:probability

untilLeft :: (Num prob, Ord a, Ord b) => (a -> T prob (Either b a)) -> T prob a -> T prob b
probability Numeric.Probability.Transition