(4steps total)
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At:
length
upto
1
d,j,i:
. j-i = d
||upto(i;j)|| = d
By:
InductionOnNat
THEN
RecUnfold `upto` 0
THEN
Reduce 0
THEN
SplitOnConclITE
THEN
Reduce 0
Generated subgoal:
1
1.
d:
2.
0 < d
3.
j,i:
. j-i = d-1
||upto(i;j)|| = d-1
4.
j:
5.
i:
6.
j-i = d
7.
i < j
||upto(i+1;j)||+1 = d
1
step
About:
(4steps total)
PrintForm
Definitions
graph
1
1
Sections
Graphs
Doc