At: auto2 list ind 1 1 1 2 1 1 2
1. Alph: Type
2. P: Alph*
Prop
3. n: 
4. 0 < n
5.
l:Alph*. ||l|| < n-1 
P(l)
6. (
l:Alph*. ||l|| < n-1 
P(l)) 
(
l:Alph*. ||l|| = n-1 
P(l))
7. l: Alph*
8. ||l|| < n
9.
||l|| < n-1
P(l)
By: Assert (||l|| = n-1)
Generated subgoals:1 | ||l|| = n-1 |
2 | 10. ||l|| = n-1 P(l) |
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