Step |
Hyp |
Ref |
Expression |
1 |
|
relxp |
|
2 |
1
|
rgenw |
|
3 |
|
reliun |
|
4 |
2 3
|
mpbir |
|
5 |
|
elrel |
|
6 |
4 5
|
mpan |
|
7 |
|
excom |
|
8 |
6 7
|
sylibr |
|
9 |
8
|
pm4.71ri |
|
10 |
|
nfiu1 |
|
11 |
10
|
nfel2 |
|
12 |
11
|
19.41 |
|
13 |
|
19.41v |
|
14 |
|
eleq1 |
|
15 |
|
opeliun2xp |
|
16 |
15
|
biancomi |
|
17 |
14 16
|
bitrdi |
|
18 |
17
|
pm5.32i |
|
19 |
18
|
exbii |
|
20 |
13 19
|
bitr3i |
|
21 |
20
|
exbii |
|
22 |
9 12 21
|
3bitr2i |
|
23 |
|
excom |
|
24 |
22 23
|
bitri |
|