At: normalization  lemma 1 1 1 1 1 1 1 5 1 1 2 2 1 3 1 2
1. hyp: Formula List
2. concl: Formula List
3. 
f
hyp.(
(f) > 0)
4. M: Formula List
5. N: Formula List
6. f: Formula
7. y1: Formula
8. y2: Formula
9. 
(y1


y2) > 0
10. hyp = (M @ (y1


y2.N))
11. L: Sequent List
12. 
s
L.(
(s) = 0)
13. 
s
L.|= s  
 |=  < y2.(M @ N),concl >  
14. 
a:Assignment. 
s
L.a |
 s 
 a |
  < y2.(M @ N),concl > 
15. L1: Sequent List
16. 
s
L1.(
(s) = 0)
17. 
s
L1.|= s  
 |=  < M @ N,y1.concl >  
18. 
a:Assignment. 
s
L1.a |
 s 
 a |
  < M @ N,y1.concl > 
19. a: Assignment
20. 
s
(L @ L1).a |
 s
21. 
s
L1.a |
 s
 
 a |
  < y2.(M @ N),concl >  
 a |
  < M @ N,y1.concl > 
By: 
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THEN
HypBackchain
Generated subgoals:None
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