Nuprl Lemma : ring_non_triv_wf
13,42
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r
:Rng.
r
0
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rings
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Definitions of Statement
Rng
,
r
0
Definitions
r
0
,
t
T
,
x
:
A
.
B
(
x
)
,
Rng
Lemmas
rng
wf
,
rng
zero
wf
,
rng
one
wf
,
rng
car
wf
,
nequal
wf
origin