At: div 2 to 11111 1. a: {...0} 2. b: 3. 0((-a) rem b) 4. ((-a) rem b) < b 5. 0(a rem b) 6. (a rem b) > -b 7. -a+-b((-a) b) = ((-a) rem b) 8. a+-b(a b) = (a rem b)
(a b) = -((-a) b) By: RevHypSubst 7 3
THEN
RevHypSubst 7 4
THEN
RevHypSubst 8 5
THEN
RevHypSubst 8 6
THEN
OnHyps [8;7] Thin Generated subgoal: