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At: formula or right sound 1 1 1 2 2 1
1. hyp: Formula List
2. M: Formula List
3. N: Formula List
4. q: Formula
5. r: Formula
6. a: Assignment
7. a | < hyp,M @ (qr.N) >
8. a | < hyp,[q; r/ M @ N] >

a |= < hyp,[q; r/ M @ N] > a | < hyp,[q; r/ M @ N] >
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THEN
Trivial
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orpairconslist