Step of Proof: wellfounded_functionality_wrt_implies
9,38
postcript
pdf
Inference at
*
1
I
of proof for Lemma
wellfounded
functionality
wrt
implies
:
1.
T1
: Type
2.
T2
: Type
3.
r1
:
T1
T1
4.
r2
:
T2
T2
5.
T1
=
T2
6.
x
,
y
:
T1
.
r1
(
x
,
y
)
r2
(
x
,
y
)
7.
P
:(
T1
). (
j
:
T1
. (
k
:
T1
.
r1
(
k
,
j
)
P
(
k
))
P
(
j
))
{
n
:
T1
.
P
(
n
)}
8.
P
:
T2
9.
j
:
T2
. (
k
:
T2
.
r2
(
k
,
j
)
P
(
k
))
P
(
j
)
n
:
T2
.
P
(
n
)
latex
by SubstClause
n
:
T1
.
P
(
n
) 0
latex
1
: .....equality..... NILNIL
1:
(
n
:
T2
.
P
(
n
)) = (
n
:
T1
.
P
(
n
))
2
:
2:
n
:
T1
.
P
(
n
)
.
Definitions
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T
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