/Я language (β)/Operators/ha'st/

(`ha`) [H]om functor alias mapping contr[A]variantly (`st`) Factoring through [S]uper[T]ype relation
`ha'st`¹ : target ( t a _ ) ( target ( source ( Supertype o ) ( a ) ) ( t o _ ) )

`ha'st`¹, `ha_'st`², `ha__'st`³, `ha___'st`⁴, `ha____'st`⁵, `ha_____'st`⁶.