Step of Proof: nat_ind_tp
9,38
postcript
pdf
Inference at
*
1
1
1
3
I
of proof for Lemma
nat
ind
tp
:
.....upcase..... NILNIL
1.
P
:
{k}
2.
P
(0)
3.
i
:
.
P
(
i
- 1)
P
(
i
)
4.
i
:
5. 0 <
i
6. ((
i
- 1)
0 )
P
(
i
- 1)
(
i
0 )
P
(
i
)
latex
by D 0
latex
1
:
1:
7.
i
0
1:
P
(
i
)
2
: .....wf..... NILNIL
2:
(
i
0 )
.
Definitions
P
Q
,
t
T
,
Lemmas
ge
wf
origin