| Step |
Hyp |
Ref |
Expression |
| 1 |
|
fveq2 |
|
| 2 |
1
|
sseq1d |
|
| 3 |
2
|
imbi2d |
|
| 4 |
|
fveq2 |
|
| 5 |
4
|
sseq1d |
|
| 6 |
5
|
imbi2d |
|
| 7 |
|
fveq2 |
|
| 8 |
7
|
sseq1d |
|
| 9 |
8
|
imbi2d |
|
| 10 |
|
fveq2 |
|
| 11 |
10
|
sseq1d |
|
| 12 |
11
|
imbi2d |
|
| 13 |
|
ssid |
|
| 14 |
13
|
2a1i |
|
| 15 |
|
simprl |
|
| 16 |
|
recnprss |
|
| 17 |
16
|
ad2antrr |
|
| 18 |
17
|
adantr |
|
| 19 |
|
simplll |
|
| 20 |
|
eluznn0 |
|
| 21 |
20
|
adantll |
|
| 22 |
21
|
adantr |
|
| 23 |
|
dvnf |
|
| 24 |
19 15 22 23
|
syl3anc |
|
| 25 |
|
dvnbss |
|
| 26 |
19 15 22 25
|
syl3anc |
|
| 27 |
|
dvnp1 |
|
| 28 |
18 15 22 27
|
syl3anc |
|
| 29 |
|
simprr |
|
| 30 |
28 29
|
eqeltrrd |
|
| 31 |
|
cncff |
|
| 32 |
30 31
|
syl |
|
| 33 |
32
|
fdmd |
|
| 34 |
|
cnex |
|
| 35 |
|
elpm2g |
|
| 36 |
34 19 35
|
sylancr |
|
| 37 |
15 36
|
mpbid |
|
| 38 |
37
|
simprd |
|
| 39 |
26 38
|
sstrd |
|
| 40 |
18 24 39
|
dvbss |
|
| 41 |
33 40
|
eqsstrrd |
|
| 42 |
26 41
|
eqssd |
|
| 43 |
42
|
feq2d |
|
| 44 |
24 43
|
mpbid |
|
| 45 |
|
dvcn |
|
| 46 |
18 44 38 33 45
|
syl31anc |
|
| 47 |
15 46
|
jca |
|
| 48 |
47
|
ex |
|
| 49 |
|
peano2nn0 |
|
| 50 |
21 49
|
syl |
|
| 51 |
|
elcpn |
|
| 52 |
17 50 51
|
syl2anc |
|
| 53 |
|
elcpn |
|
| 54 |
17 21 53
|
syl2anc |
|
| 55 |
48 52 54
|
3imtr4d |
|
| 56 |
55
|
ssrdv |
|
| 57 |
|
sstr2 |
|
| 58 |
56 57
|
syl |
|
| 59 |
58
|
expcom |
|
| 60 |
59
|
a2d |
|
| 61 |
3 6 9 12 14 60
|
uzind4 |
|
| 62 |
61
|
com12 |
|
| 63 |
62
|
3impia |
|