/Я language (β)/Glossary/Functor Composition/

: Supertype ( t `T'TT'I__` tt `T'I___` i ) ~ ( t ( tt i ) )
: Supertype ( t `P'T'I'TT'I` tt `T'I___` i ) ~ ( t i `P` tt i )
: Supertype ( t `S'T'I'TT'I` tt `T'I___` i ) ~ ( t i `S` tt i )

Work in progress...