Step of Proof: sub-equality
11,40
postcript
pdf
Inference at
*
1
2
2
2
I
of proof for Lemma
sub-equality
:
1.
T
: Type
2.
P
:
T
3.
i
:
T
4.
u
:
T
5.
i
=
u
6.
P
(
u
)
7.
P
(
i
)
8.
u
{
j
:
T
|
P
(
j
)}
{
j
:
T
|
P
(
j
)}
latex
by (UseWitness
u
)
CollapseTHEN (Trivial)
latex
C
.
Definitions
t
T
origin