(4steps)
PrintForm
Definitions
Lemmas
int
2
Sections
StandardLIB
Doc
At:
neg
mul
arg
bounds
a,b:
. a
b < 0
a < 0 & b > 0
a > 0 & b < 0
By:
RepD
THEN
Inst
Thm*
a,b:
. a
b > 0
a > 0 & b > 0
a < 0 & b < 0 [-a;b]
Generated subgoal:
1
1.
a:
2.
b:
3.
(-a)
b > 0
-a > 0 & b > 0
-a < 0 & b < 0
a
b < 0
a < 0 & b > 0
a > 0 & b < 0
About:
(4steps)
PrintForm
Definitions
Lemmas
int
2
Sections
StandardLIB
Doc