At: nd comp extend wf 1 1 1
1. Alph: Type
2. St: Type
3. C: {C:{l:((St
Alph*)*)| ||l|| > 0 }|
i:
(||C||-1). ||2of(C[i])|| > 0 }
4. a: Alph
5. q: St
(map(
c. < 1of(c),a.2of(c) > ;C) @ [ < q,nil > ])
(St
Alph*)*
By: Analyze
Generated subgoals:None
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