Nuprl Lemma : bimplies_wf
9,38
postcript
pdf
p
,
q
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. (
p
q
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latex
ProofTree
Definitions
p
q
,
t
T
,
x
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A
.
B
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x
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Lemmas
bool
wf
,
bnot
wf
,
bor
wf
origin
p,q:
. (p 
q) 
p,q:. (p q)
q Tx:A. B(x)