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| author | Edoardo La Greca | 2026-02-27 21:47:33 +0100 |
|---|---|---|
| committer | Edoardo La Greca | 2026-02-27 21:47:33 +0100 |
| commit | fb42546b8e86a52eb5765c17e056ee6c24210d61 (patch) | |
| tree | 62903448c60d59ccb72a35c40f02b2fa027304d9 | |
| parent | eca919d2f2e3a342720f2ab5eb85b29e880a384b (diff) | |
| -rw-r--r-- | lec10/notes.md | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lec10/notes.md b/lec10/notes.md index e65dbe9..3a3cac6 100644 --- a/lec10/notes.md +++ b/lec10/notes.md @@ -48,7 +48,7 @@ Our applied version of `fmap` lets us apply functions to values in a Functor con Using `(<*>)` we can now implement `fmap2`, which is also available in the standard library as `liftA2`. The standard library also defines a synonym for `fmap`, `(<$>)`, available in `Control.Applicative`. As a result, `liftA2` is simply written as: - liftA2 :: Applicative f => (a -> b -> c -> f a -> f b -> f c + liftA2 :: Applicative f => (a -> b -> c) -> f a -> f b -> f c liftA2 h fa fb = h <$> fa <*> fb We can write `liftA3` similarly, with the same operators: |