Nuprl Lemma : not_over_or
9,38
postcript
pdf
A
,
B
:
. (
(
A
B
))
((
A
)
(
B
))
latex
ProofTree
Definitions
t
T
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P
Q
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P
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P
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P
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x
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A
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B
(
x
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A
,
False
Lemmas
not
wf
origin
A,B:
. (
(A 
B)) 
((A) 
(B))
A,B:. ((A B)) ((A) (B))
T Q Q Q Q Qx:A. B(x)A