At: formula or right sat 2 1 1 3
1. hyp: Formula List
2. M: Formula List
3. N: Formula List
4. q: Formula
5. r: Formula
6. a: Assignment
7. a |= q
F
hyp.a |
F 
a |= q a |= r FM.a |= F FN.a |= F
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THEN
Trivial
Generated subgoals:None
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