At: formula and right sat21 1. hyp: Formula List 2. M: Formula List 3. N: Formula List 4. q: Formula 5. r: Formula 6. a: Assignment 7. Fhyp.a | F FM.a |= F a |= qr FN.a |= F
a |= < hyp,q.(M @ N) > & a |= < hyp,r.(M @ N) > By: Rewrite
(HigherC
(LemmaC
Thm*a:Assignment, q,r:Formula. a |= qr a |= q & a |= r ))
-1 Generated subgoal: