None
Conclusion:
concl,M,N:Formula List.
q,r:Formula.
a:Assignment.
a |
<r::(M @ N), concl>
a |
<M @ N, q::concl>
a |
<M @ (q
r::N), concl>
1. a | 2. a |
<M @ (q
r::N), concl>
<r::(M @ N), concl>
a |
<M @ N, q::concl>