At: formula or left sat 1 1 23
1. concl: Formula List
2. M: Formula List
3. N: Formula List
4. q: Formula
5. r: Formula
6. a: Assignment
7. 
F
N.a |
F
a | r 
FM.a | F FN.a | F Fconcl.a |= F
By:
Choose [1;2;2]
THEN
Trivial
Generated subgoals:None
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