Step |
Hyp |
Ref |
Expression |
1 |
|
ttgval.n |
|
2 |
|
ttglem.2 |
|
3 |
|
ttglem.3 |
|
4 |
|
ttglem.4 |
|
5 |
2 3
|
ndxid |
|
6 |
3
|
nnrei |
|
7 |
6 4
|
ltneii |
|
8 |
2 3
|
ndxarg |
|
9 |
|
itvndx |
|
10 |
8 9
|
neeq12i |
|
11 |
7 10
|
mpbir |
|
12 |
5 11
|
setsnid |
|
13 |
|
1nn0 |
|
14 |
|
6nn0 |
|
15 |
|
7nn |
|
16 |
|
6lt7 |
|
17 |
13 14 15 16
|
declt |
|
18 |
|
6nn |
|
19 |
13 18
|
decnncl |
|
20 |
19
|
nnrei |
|
21 |
13 15
|
decnncl |
|
22 |
21
|
nnrei |
|
23 |
6 20 22
|
lttri |
|
24 |
4 17 23
|
mp2an |
|
25 |
6 24
|
ltneii |
|
26 |
|
lngndx |
|
27 |
8 26
|
neeq12i |
|
28 |
25 27
|
mpbir |
|
29 |
5 28
|
setsnid |
|
30 |
12 29
|
eqtri |
|
31 |
|
eqid |
|
32 |
|
eqid |
|
33 |
|
eqid |
|
34 |
|
eqid |
|
35 |
1 31 32 33 34
|
ttgval |
|
36 |
35
|
simpld |
|
37 |
36
|
fveq2d |
|
38 |
30 37
|
eqtr4id |
|
39 |
2
|
str0 |
|
40 |
|
fvprc |
|
41 |
|
fvprc |
|
42 |
1 41
|
syl5eq |
|
43 |
42
|
fveq2d |
|
44 |
39 40 43
|
3eqtr4a |
|
45 |
38 44
|
pm2.61i |
|