Step |
Hyp |
Ref |
Expression |
1 |
|
lngndx |
|
2 |
|
1re |
|
3 |
|
1nn |
|
4 |
|
7nn0 |
|
5 |
|
1nn0 |
|
6 |
|
1lt10 |
|
7 |
3 4 5 6
|
declti |
|
8 |
2 7
|
gtneii |
|
9 |
|
basendx |
|
10 |
8 9
|
neeqtrri |
|
11 |
1 10
|
eqnetri |
|
12 |
|
2re |
|
13 |
|
2nn0 |
|
14 |
|
2lt10 |
|
15 |
3 4 13 14
|
declti |
|
16 |
12 15
|
gtneii |
|
17 |
|
plusgndx |
|
18 |
16 17
|
neeqtrri |
|
19 |
1 18
|
eqnetri |
|
20 |
11 19
|
pm3.2i |
|
21 |
|
6re |
|
22 |
|
6nn0 |
|
23 |
|
6lt10 |
|
24 |
3 4 22 23
|
declti |
|
25 |
21 24
|
gtneii |
|
26 |
|
vscandx |
|
27 |
25 26
|
neeqtrri |
|
28 |
1 27
|
eqnetri |
|
29 |
|
2nn |
|
30 |
5 29
|
decnncl |
|
31 |
30
|
nnrei |
|
32 |
|
7nn |
|
33 |
|
2lt7 |
|
34 |
5 13 32 33
|
declt |
|
35 |
31 34
|
gtneii |
|
36 |
|
dsndx |
|
37 |
35 36
|
neeqtrri |
|
38 |
1 37
|
eqnetri |
|
39 |
28 38
|
pm3.2i |
|
40 |
20 39
|
pm3.2i |
|