Function
. (Prelude)
$
&
Functor
<$>
<&>
$>
<$
Applicative
<*>
<**>
*>
<*
Alternative
<|>
Monad
>>=
=<<
>=>
<=<
>>
Category
. (Control.Category)
>>>
<<<
Function
. (Prelude)
$
&
Functor
<$>
<&>
$>
<$
Applicative
<*>
<**>
*>
<*
Alternative
<|>
Monad
>>=
=<<
>=>
<=<
>>
Category
. (Control.Category)
>>>
<<<
깔-끔 - dc App