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At: min ar alt 2 2

1. f:
2. n:
3. i: (n+1)
4. f(n-i) = f(n)
5. j:
6. 0 < j
7. j < n-i+1
8. MinAr(f;j-1+i;n) = MinAr(f;j-1;n-i)+i
9. f(n-(j+i)) = f(n)

MinAr(f;j+i-1;n) = MinAr(f;j;n-i)+i

By:
Assert (j-1+i = j+i-1)
THEN
RWH (HypC 10) 8
THEN
Thin 10


Generated subgoal:

18. MinAr(f;j+i-1;n) = MinAr(f;j-1;n-i)+i
9. f(n-(j+i)) = f(n)
MinAr(f;j+i-1;n) = MinAr(f;j;n-i)+i


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equalintsubtractaddnatural_number
functionboolapplyless_than