Nuprl Lemma : binrel_le_weakening
13,42
postcript
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T
:Type,
R
,
R'
:(
T
T
). (
R
<
>{
T
}
R'
)
(
R
>{
T
}
R'
)
latex
Up
gen
algebra
1
Definitions of Statement
E
<
>{
T
}
E'
,
E
>{
T
}
E'
Definitions
t
T
,
E
>{
T
}
E'
,
E
<
>{
T
}
E'
,
P
Q
,
,
x
:
A
.
B
(
x
)
,
P
&
Q
,
P
Q
Lemmas
iff
wf
origin
T:Type, R, R':(T
T
). (R <
>{T} R') 
(R >{T} R') T:Type, R, R':(TT). (R <>{T} R') (R >{T} R') >{T} E'>{T} E'
T>{T} E'>{T} E' Qx:A. B(x)
Q