Nuprl Lemma : bimplies_wf
13,42
postcript
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p
,
q
:
. (
p
q
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latex
Up
bool
1
,
bool
1
Definitions
p
q
,
t
T
,
x
:
A
.
B
(
x
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Lemmas
bool
wf
,
bnot
wf
,
bor
wf
origin