(13steps) PrintForm Definitions Lemmas int 2 Sections StandardLIB Doc

At: pos mul arg bounds 1 1 1
1. a:
2. b:
3. ab > 0
4. a < 0

b < 0
By: ReplaceWithEqv (TryC (HigherC IntSimpC)) ((-a)(-b) > (-a)0) 3
Generated subgoal:

13. (-a)(-b) > (-a)0
4. a < 0
b < 0

About:
intnatural_numberminusmultiplyless_than

(13steps) PrintForm Definitions Lemmas int 2 Sections StandardLIB Doc