2. f :
n
3. m :
n
4.
x:n. 
x = m 
f(x) = 0
5. sum(f(x) | x < n) = f(m)+sum(if x=
m
0 else f(x) fi | x < n)
6. x :
n
if x=m 0 else f(x) fi = 0
n
n
x:n. x = m f(x) = 0
m 0 else f(x) fi | x < n)
n
if x=m 0 else f(x) fi = 0| By: |
|
None
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