So my recursive function is too look in a list and see if an item is repeated in a list already. Ex. L = [1,2,3,4,3] return True. I've completed it but im not allowed to use the 'in' function but dont know a work around.

Edit: the only built in functions i am allowed to use are `len`, and the `index` and splice operators.

```
def has_repeats(L):
    if L == []:
        return False
    elif L[0] in L[1:]:
        return True
    else:
        return has_repeats(L[1:])
    return False

```