Step |
Hyp |
Ref |
Expression |
1 |
|
kur14lem.j |
|
2 |
|
kur14lem.x |
|
3 |
|
kur14lem.k |
|
4 |
|
kur14lem.i |
|
5 |
|
kur14lem.a |
|
6 |
|
kur14lem.b |
|
7 |
|
difss |
|
8 |
6 7
|
eqsstri |
|
9 |
1 2 3 4 8
|
kur14lem3 |
|
10 |
4
|
fveq1i |
|
11 |
2
|
ntrss2 |
|
12 |
1 9 11
|
mp2an |
|
13 |
10 12
|
eqsstri |
|
14 |
2
|
clsss |
|
15 |
1 9 13 14
|
mp3an |
|
16 |
3
|
fveq1i |
|
17 |
3
|
fveq1i |
|
18 |
15 16 17
|
3sstr4i |
|
19 |
1 2 3 4 8
|
kur14lem5 |
|
20 |
18 19
|
sseqtri |
|
21 |
1 2 3 4 9
|
kur14lem2 |
|
22 |
|
difss |
|
23 |
21 22
|
eqsstri |
|
24 |
1 2 3 4 5
|
kur14lem3 |
|
25 |
6
|
fveq2i |
|
26 |
25
|
difeq2i |
|
27 |
1 2 3 4 24
|
kur14lem2 |
|
28 |
4
|
fveq1i |
|
29 |
26 27 28
|
3eqtr2i |
|
30 |
2
|
ntrss2 |
|
31 |
1 24 30
|
mp2an |
|
32 |
29 31
|
eqsstri |
|
33 |
2
|
clsss |
|
34 |
1 24 32 33
|
mp3an |
|
35 |
3
|
fveq1i |
|
36 |
1 2 3 4 5
|
kur14lem5 |
|
37 |
3
|
fveq1i |
|
38 |
36 37
|
eqtr3i |
|
39 |
34 35 38
|
3sstr4i |
|
40 |
|
sscon |
|
41 |
39 40
|
ax-mp |
|
42 |
41 6 21
|
3sstr4i |
|
43 |
2
|
clsss |
|
44 |
1 23 42 43
|
mp3an |
|
45 |
3
|
fveq1i |
|
46 |
44 45 16
|
3sstr4i |
|
47 |
20 46
|
eqssi |
|