Index - <
| < | Control.Indexed.Prelude |
| <!$> | Data.Indexed.Functor, Control.Delimited |
| <!* | Control.Indexed.Applicative, Control.Delimited |
| <!*> | Control.Indexed.Applicative, Control.Delimited |
| <= | Control.Indexed.Prelude |
| <=<! | Control.Indexed.Monad, Control.Delimited |