j
k
j a
j l
John D. Ramsdell schrieb:
Try deleting it and see what happens.
Erm, yes, this case is wrong:
.........| n <= 0 = []
......| n <= 0 = []
...| n <= 0 = []
| n <= 0 = []
There is _one_ permutation with no elements, namely [], thus it must be | n == 0 = [[]]
Back to the thread
Back to the list
