Step of Proof: dcdr-to-bool-equivalence
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Inference at
*
2
1
I
of proof for Lemma
dcdr-to-bool-equivalence
:
1.
P
:
2.
x
:
P
3.
P
[inl
x
]
latex
by (RepUR ``dcdr-to-bool assert`` ( 0)
)
CollapseTHEN (Trivial)
latex
C
.
Definitions
[
d
]
,
b
,
True
,
t
T
origin