Nuprl Lemma : dsys-join-sub
0,22
postcript
pdf
A
,
B
,
C
:Dsys.
A
C
B
C
A
B
C
latex
Definitions
Dsys
,
A
B
,
D1
D2
,
M(
i
)
,
M1
M2
,
M1
M2
,
Id
,
P
Q
,
x
:
A
.
B
(
x
)
,
f
(
a
)
,
t
T
Lemmas
ma-join-sub
,
Id
wf
,
dsys
wf
,
d-sub
wf
origin
A, B, C:Dsys. A 
C 
B C A 
B C A, B, C:Dsys. A C B C A B C B D2 M2 M2 Qx:A. B(x)
T