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