At: pump theorem 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 2 2 1 1 1 1
1. Alph: Type
2. S: ActionSet(Alph)
3. N: 

4. s: S.car
5. f: S.car

N
6. g:
N
S.car
7. g o f = Id
8. f o g = Id
9. A: Alph*
10. N < ||A||
11. i:
||A||
12. j:
||A||
13. i < j
14. f((S:A[||A||-i..||A||
]
s)) = f((S:A[||A||-j..||A||
]
s))
15. (S:A[||A||-i..||A||
]
s) = (S:A[||A||-j..||A||
]
s)
16. k: 
17. 0 < k
18. (S:((A[0..||A||-j
]) @ (A[||A||-j..||A||-i
]
k-1)) @ (A[||A||-i..||A||
])
s) = (S:A
s)
19.
k = 0
(S:((A[0..||A||-j
]) @ (A[||A||-j..||A||-i
]
k-1)) @ (A[||A||-j..||A||
])
s) = (S:A
s)
By: Inst
Thm*
S:ActionSet(Alph), s:S.car, L1,L2,L:Alph*.
(S:L1
s) = (S:L2
s) 
(S:L @ L1
s) = (S:L @ L2
s)
[Alph;S;s;A[||A||-i..||A||
];A[||A||-j..||A||
];(A[0..||A||-j
]) @ (A[||A||-j..||A||-i
]
k-1)]
Generated subgoals:None
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