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