Clasa Show e o clasa de structuri algebrice cu cate operatii ?

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Proprietatea principala a valorilor din clasa Show este ca pot fi transformate in string-uri si afisate pe ecran, ca un text.

Operatia va fi:

show :: x -> String

... unde x este tipul acelor valori de afisat.

Clasa Show este clasa tipurilor afisabile.