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At: sublist pair 2

1. T : Type
2. L : T List
3. i : ||L||
4. j : ||L||
5. i<j
6. j@0 : 2
  [L[i]; L[j]][j@0] = L[if j@0=0 i else j fi]


By: CaseNat 0 `j@0' THEN Reduce 0


Generated subgoal:

1 7. j@0 = 0
  [L[i]; L[j]][j@0] = L[if j@0=0 i else j fi]

1 step

About:
listconsnilifthenelsenatural_numberless_thanuniverseequal
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