Step |
Hyp |
Ref |
Expression |
1 |
|
iunconnlem2.1 |
|
2 |
|
iunconnlem2.2 |
|
3 |
|
iunconnlem2.3 |
|
4 |
|
iunconnlem2.4 |
|
5 |
|
iunconnlem2.5 |
|
6 |
3
|
ex |
|
7 |
6
|
ralrimiv |
|
8 |
|
iunss |
|
9 |
8
|
biimpri |
|
10 |
7 9
|
syl |
|
11 |
1
|
biimpi |
|
12 |
11
|
simprd |
|
13 |
|
simp-4r |
|
14 |
11 13
|
syl |
|
15 |
|
n0 |
|
16 |
15
|
biimpi |
|
17 |
14 16
|
syl |
|
18 |
|
inss2 |
|
19 |
|
id |
|
20 |
18 19
|
sselid |
|
21 |
|
eliun |
|
22 |
21
|
biimpi |
|
23 |
20 22
|
syl |
|
24 |
|
rexn0 |
|
25 |
23 24
|
syl |
|
26 |
25
|
exlimiv |
|
27 |
17 26
|
syl |
|
28 |
|
nfv |
|
29 |
|
nfv |
|
30 |
28 29
|
nfan |
|
31 |
|
nfcv |
|
32 |
|
nfiu1 |
|
33 |
31 32
|
nfin |
|
34 |
|
nfcv |
|
35 |
33 34
|
nfne |
|
36 |
30 35
|
nfan |
|
37 |
|
nfcv |
|
38 |
37 32
|
nfin |
|
39 |
38 34
|
nfne |
|
40 |
36 39
|
nfan |
|
41 |
|
nfcv |
|
42 |
|
nfcv |
|
43 |
42 32
|
nfdif |
|
44 |
41 43
|
nfss |
|
45 |
40 44
|
nfan |
|
46 |
|
nfcv |
|
47 |
32 46
|
nfss |
|
48 |
45 47
|
nfan |
|
49 |
1
|
nfbii |
|
50 |
48 49
|
mpbir |
|
51 |
|
simp-6l |
|
52 |
11 51
|
syl |
|
53 |
52 4
|
sylan |
|
54 |
53
|
ex |
|
55 |
50 54
|
ralrimi |
|
56 |
|
r19.2z |
|
57 |
56
|
ancoms |
|
58 |
57
|
ancoms |
|
59 |
27 55 58
|
syl2anc |
|
60 |
|
eliun |
|
61 |
60
|
biimpri |
|
62 |
59 61
|
syl |
|
63 |
12 62
|
sseldd |
|
64 |
|
elun |
|
65 |
64
|
biimpi |
|
66 |
63 65
|
syl |
|
67 |
1 66
|
sylbir |
|
68 |
52 2
|
syl |
|
69 |
52 3
|
sylan |
|
70 |
52 5
|
sylan |
|
71 |
|
simp-6r |
|
72 |
11 71
|
syl |
|
73 |
|
simp-5r |
|
74 |
11 73
|
syl |
|
75 |
|
simpllr |
|
76 |
11 75
|
syl |
|
77 |
|
simplr |
|
78 |
11 77
|
syl |
|
79 |
68 69 53 70 72 74 76 78 12 50
|
iunconnlem |
|
80 |
|
incom |
|
81 |
80 78
|
eqsstrid |
|
82 |
|
uncom |
|
83 |
12 82
|
sseqtrrdi |
|
84 |
68 69 53 70 74 72 14 81 83 50
|
iunconnlem |
|
85 |
|
pm4.56 |
|
86 |
85
|
biimpi |
|
87 |
86
|
idiALT |
|
88 |
79 84 87
|
syl2anc |
|
89 |
1 88
|
sylbir |
|
90 |
67 89
|
pm2.65da |
|
91 |
90
|
ex |
|
92 |
91
|
ex |
|
93 |
92
|
ex3 |
|
94 |
93
|
3impd |
|
95 |
94
|
3expia |
|
96 |
95
|
ex |
|
97 |
96
|
impd |
|
98 |
97
|
ralrimivv |
|
99 |
|
connsub |
|
100 |
99
|
biimp3ar |
|
101 |
2 10 98 100
|
syl3anc |
|