Step of Proof: neg_mul_arg_bounds
12,41
postcript
pdf
Inference at
*
1
1
1
I
of proof for Lemma
neg
mul
arg
bounds
:
1.
a
:
2.
b
:
3. (0 > (
a
*
b
))
(((0 >
a
) & (
b
> 0))
((
a
> 0) & (
b
< 0)))
((
a
*
b
) < 0)
(((
a
< 0) & (
b
> 0))
((
a
> 0) & (
b
< 0)))
latex
by (Auto_aux (first_nat 1:n) ((first_nat 1:n),(first_nat 4:n)) (first_tok :t) inil_term)
latex
.
Definitions
P
Q
,
P
Q
,
P
&
Q
,
P
Q
,
i
>
j
,
P
Q
origin