8 lines
401 B
Text
8 lines
401 B
Text
letRecMissingAnnotation.lean:4:6-4:34: error: failed to prove termination, possible solutions:
|
|
- Use `have`-expressions to prove the remaining goals
|
|
- Use `termination_by` to specify a different well-founded relation
|
|
- Use `decreasing_by` to specity your own tactic for discharging this kind of goal
|
|
as : Array Nat
|
|
i s : Nat
|
|
h : i < Array.size as
|
|
⊢ Array.size as - (i + 2) < Array.size as - i
|