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

At: pos mul arg bounds 1 1

1. a:
2. b:
3. ab > 0
4. a < 0

a > 0 & b > 0 a < 0 & b < 0

By: Sel 2 (Analyze 0)

Generated subgoal:

1 b < 0


About:
intnatural_numbermultiplyless_thanandor

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