At: formula or right sound 1 1 2
1. hyp: Formula List
2. M: Formula List
3. N: Formula List
4. q: Formula
5. r: Formula
6. a: Full( < hyp,M @ (q

r.N) > )
7. a |= < hyp,[q; r/ M @ N] >
a |= < hyp,M @ (q

r.N) >
By: BackThru
Thm*
hyp,M,N:Formula List, q,r:Formula, a:Assignment.
a |= < hyp,[q; r/ M @ N] > 
a |= < hyp,M @ (q

r.N) >
Generated subgoals:None
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