Nuprl Lemma : mul_bounds_1b
13,42
postcript
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a
,
b
:
. 0 < (
a
*
b
)
latex
Up
int
2
,
int
2
Definitions
t
T
,
x
:
A
.
B
(
x
)
,
P
Q
,
Lemmas
nat
plus
wf
,
mul
preserves
lt
origin
a, b:
. 0 < (a * b) a, b:. 0 < (a * b) 
Tx:A. B(x)
Q