Remove redundant map

snippets/none.md

@@ -5,11 +5,11 @@ tags: list,function,intermediate
 
 Returns `False` if the provided function returns `True` for at least one element in the list, `True` otherwise.
 
-Use `all()` in combination with `map()` and `fn` to check if `fn` returns `False` for all the elements in the list.
+Use `all()` and run `fn` to check if `fn` returns `False` for all the elements in the list.
 
 ```py
 def none(lst, fn=lambda x: x):
-  return all(map(lambda x: not fn(x), lst))
+  return all(not fn(x) for x in lst)
 ```
 
 ```py