At: formula imp left sound112 1. concl: Formula List 2. M: Formula List 3. N: Formula List 4. q: Formula 5. r: Formula 6. |= < M @ N,q.concl > 7. a: Full( < M @ (qr.N),concl > ) 8. a |= < r.(M @ N),concl >
a |= < M @ (qr.N),concl > By: BackThru
Thm*concl,M,N:Formula List, q,r:Formula, a:Assignment.
a |= < r.(M @ N),concl > & a |= < M @ N,q.concl > a |= < M @ (qr.N),concl > Generated subgoal: