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| Instance of Functor for a tuple that takes type a as input -- /Hint/: Look at the type signature of <$> -- Refresh... >>> (+1) <$> (1,2) AUD (1,3) -- instance Functor ((,) a) where (<$>) :: (b -> c) -> (a, b) -> (a, c) (<$>) (a) f = (f a)

| Instance of Functor for a tuple that takes type a as input -- /Hint/: Look at the type signature of <$> -- Refresh... >>> (+1) <$> (1,2) AUD (1,3) -- instance Functor ((,) a) where (<$>) :: (b -> c) -> (a, b) -> (a, c) (<$>) (a) f = (f a)

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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I want to know what am i doing wrong in HASKELL code below its regsrding functors 

| Instance of Functor for a tuple that takes type a as input ZHint/: Look at the type signature of <$> Refresh... >>> (+1) <$> (1,2) (1,3) instance Functor ((,) a) where (<$>) :: (b 2 3 -- 4 -> с) -> (а, b) —> (а, с) (<$>) (a) f If a) %D 7 8. | Map a function over a Functor of Eunctors
Transcribed Image Text:| Instance of Functor for a tuple that takes type a as input ZHint/: Look at the type signature of <$> Refresh... >>> (+1) <$> (1,2) (1,3) instance Functor ((,) a) where (<$>) :: (b 2 3 -- 4 -> с) -> (а, b) —> (а, с) (<$>) (a) f If a) %D 7 8. | Map a function over a Functor of Eunctors
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