At: formula not right falsifiable 1 2 1 1 1
1. hyp: Formula List
2. M: Formula List
3. N: Formula List
4. f2: Formula
5. a: Assignment
6. 
F
hyp.a |= F
7. FM.a |
F
8. a | 
f2
9. FN.a | F
a |= f2
By: BackThru
Thm* F:Formula, a:Assignment. a | F 
a |= F
Generated subgoals:None
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