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