At: formula imp left sat 1 1 1 3 1 1 1 1
1. concl: Formula List
2. M: Formula List
3. N: Formula List
4. q: Formula
5. r: Formula
6. a: Assignment
7. a |
r
8. a |= q
a | q
r
By: BackThru
Thm* 
a:Assignment, q,r:Formula. a | qr 
a |= q & a | r
Generated subgoals:None
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