Step |
Hyp |
Ref |
Expression |
1 |
|
findcard2d.ch |
|
2 |
|
findcard2d.th |
|
3 |
|
findcard2d.ta |
|
4 |
|
findcard2d.et |
|
5 |
|
findcard2d.z |
|
6 |
|
findcard2d.i |
|
7 |
|
findcard2d.a |
|
8 |
|
ssid |
|
9 |
7
|
adantr |
|
10 |
|
sseq1 |
|
11 |
10
|
anbi2d |
|
12 |
11 1
|
imbi12d |
|
13 |
|
sseq1 |
|
14 |
13
|
anbi2d |
|
15 |
14 2
|
imbi12d |
|
16 |
|
sseq1 |
|
17 |
16
|
anbi2d |
|
18 |
17 3
|
imbi12d |
|
19 |
|
sseq1 |
|
20 |
19
|
anbi2d |
|
21 |
20 4
|
imbi12d |
|
22 |
5
|
adantr |
|
23 |
|
simprl |
|
24 |
|
simprr |
|
25 |
24
|
unssad |
|
26 |
23 25
|
jca |
|
27 |
|
id |
|
28 |
|
vsnid |
|
29 |
|
elun2 |
|
30 |
28 29
|
mp1i |
|
31 |
27 30
|
sseldd |
|
32 |
31
|
ad2antll |
|
33 |
|
simplr |
|
34 |
32 33
|
eldifd |
|
35 |
23 25 34 6
|
syl12anc |
|
36 |
26 35
|
embantd |
|
37 |
36
|
ex |
|
38 |
37
|
com23 |
|
39 |
12 15 18 21 22 38
|
findcard2s |
|
40 |
9 39
|
mpcom |
|
41 |
8 40
|
mpan2 |
|