Nuprl Lemma : decidable__and
13,42
postcript
pdf
P
,
Q
:
. Dec(
P
)
Dec(
Q
)
Dec(
P
&
Q
)
latex
Up
core
2
,
core
2
Definitions
t
T
,
P
Q
,
Dec(
P
)
,
P
Q
,
,
x
:
A
.
B
(
x
)
,
P
&
Q
,
A
,
False
Lemmas
not
wf
origin
P, Q:
. Dec(P) 
Dec(Q) Dec(P & Q) P, Q:. Dec(P) Dec(Q) Dec(P & Q) 
T
Q Qx:A. B(x)
A