f7' :: Future (Reactive Integer)

-- <NoBound Imp 1.0,1 `Stepper` (Imp 2.0,2)<interactive>: after: comparing after
f7' = q <$> f1
 where
   q (a `Stepper` Event u') = a `Stepper` Event (u' `merge` f3)
f7' :: Future (Reactive Integer)
f7' = q <$> f1
 where
   q (a `Stepper` Event u') = a `Stepper` Event (u' `merge` f3)
f7' = q <$> f1
 where
   q (a `Stepper` Event u') = a `Stepper` Event (u' `merge` f3)