Step |
Hyp |
Ref |
Expression |
1 |
|
unitg |
|
2 |
1
|
adantl |
|
3 |
|
unieq |
|
4 |
3
|
eqeq2d |
|
5 |
4
|
rspccva |
|
6 |
5
|
3ad2antl2 |
|
7 |
2 6
|
eqtr4d |
|
8 |
|
eqimss |
|
9 |
7 8
|
syl |
|
10 |
|
sspwuni |
|
11 |
9 10
|
sylibr |
|
12 |
11
|
ralrimiva |
|
13 |
|
ne0i |
|
14 |
13
|
3ad2ant3 |
|
15 |
|
riinn0 |
|
16 |
12 14 15
|
syl2anc |
|
17 |
|
simp3 |
|
18 |
|
ssid |
|
19 |
|
fveq2 |
|
20 |
19
|
sseq1d |
|
21 |
20
|
rspcev |
|
22 |
17 18 21
|
sylancl |
|
23 |
|
iinss |
|
24 |
22 23
|
syl |
|
25 |
24
|
unissd |
|
26 |
|
unitg |
|
27 |
26
|
3ad2ant3 |
|
28 |
25 27
|
sseqtrd |
|
29 |
|
unieq |
|
30 |
29
|
eqeq2d |
|
31 |
30
|
rspccva |
|
32 |
31
|
3adant1 |
|
33 |
32
|
adantr |
|
34 |
33 6
|
eqtr3d |
|
35 |
|
simpr |
|
36 |
|
ssid |
|
37 |
|
eltg3i |
|
38 |
35 36 37
|
sylancl |
|
39 |
34 38
|
eqeltrd |
|
40 |
39
|
ralrimiva |
|
41 |
|
uniexg |
|
42 |
41
|
3ad2ant3 |
|
43 |
|
eliin |
|
44 |
42 43
|
syl |
|
45 |
40 44
|
mpbird |
|
46 |
|
elssuni |
|
47 |
45 46
|
syl |
|
48 |
28 47
|
eqssd |
|
49 |
|
eqid |
|
50 |
|
eqid |
|
51 |
49 50
|
isfne4 |
|
52 |
48 24 51
|
sylanbrc |
|
53 |
16 52
|
eqbrtrd |
|