Step |
Hyp |
Ref |
Expression |
1 |
|
noinfbday.1 |
|
2 |
1
|
noinfno |
|
3 |
|
bdayval |
|
4 |
2 3
|
syl |
|
5 |
4
|
adantr |
|
6 |
|
iftrue |
|
7 |
1 6
|
syl5eq |
|
8 |
7
|
dmeqd |
|
9 |
|
1oex |
|
10 |
9
|
dmsnop |
|
11 |
10
|
uneq2i |
|
12 |
|
dmun |
|
13 |
|
df-suc |
|
14 |
11 12 13
|
3eqtr4i |
|
15 |
8 14
|
eqtrdi |
|
16 |
15
|
adantr |
|
17 |
|
simprrl |
|
18 |
|
eloni |
|
19 |
17 18
|
syl |
|
20 |
|
simprll |
|
21 |
|
simpl |
|
22 |
|
nominmo |
|
23 |
20 22
|
syl |
|
24 |
|
reu5 |
|
25 |
21 23 24
|
sylanbrc |
|
26 |
|
riotacl |
|
27 |
25 26
|
syl |
|
28 |
20 27
|
sseldd |
|
29 |
|
bdayval |
|
30 |
28 29
|
syl |
|
31 |
|
simprrr |
|
32 |
|
bdayfo |
|
33 |
|
fofn |
|
34 |
32 33
|
ax-mp |
|
35 |
|
fnfvima |
|
36 |
34 20 27 35
|
mp3an2i |
|
37 |
31 36
|
sseldd |
|
38 |
30 37
|
eqeltrrd |
|
39 |
|
ordsucss |
|
40 |
19 38 39
|
sylc |
|
41 |
16 40
|
eqsstrd |
|
42 |
1
|
noinfdm |
|
43 |
42
|
adantr |
|
44 |
|
simplrl |
|
45 |
44 18
|
syl |
|
46 |
|
ssel2 |
|
47 |
46
|
ad4ant14 |
|
48 |
|
bdayval |
|
49 |
47 48
|
syl |
|
50 |
|
simplrr |
|
51 |
|
fnfvima |
|
52 |
34 51
|
mp3an1 |
|
53 |
52
|
ad4ant14 |
|
54 |
50 53
|
sseldd |
|
55 |
49 54
|
eqeltrrd |
|
56 |
|
ordelss |
|
57 |
45 55 56
|
syl2anc |
|
58 |
57
|
sseld |
|
59 |
58
|
adantrd |
|
60 |
59
|
rexlimdva |
|
61 |
60
|
abssdv |
|
62 |
61
|
adantl |
|
63 |
43 62
|
eqsstrd |
|
64 |
41 63
|
pm2.61ian |
|
65 |
5 64
|
eqsstrd |
|