Nuprl Lemma : implies_transitivity
13,42
postcript
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P
,
Q
,
R
:
. (
P
Q
)
(
Q
R
)
{
P
R
}
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core
2
,
core
2
Definitions
t
T
,
{
T
}
,
P
Q
,
,
x
:
A
.
B
(
x
)
origin
P, Q, R:
. (P 
Q) (Q R) {P R} P, Q, R:. (P Q) (Q R) {P R} 
T Qx:A. B(x)