Description: Lemma for 5-quantifier AC of Kurt Maes, Th. 4, 1 => 2. (Contributed by NM, 5-Apr-2004)
Ref | Expression | ||
---|---|---|---|
Assertion | kmlem1 | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | vex | |
|
2 | 1 | rabex | |
3 | raleq | |
|
4 | raleq | |
|
5 | 4 | raleqbi1dv | |
6 | 3 5 | anbi12d | |
7 | raleq | |
|
8 | 7 | exbidv | |
9 | 6 8 | imbi12d | |
10 | 2 9 | spcv | |
11 | 10 | alrimiv | |
12 | elrabi | |
|
13 | elrabi | |
|
14 | 13 | imim1i | |
15 | 14 | ralimi2 | |
16 | 12 15 | imim12i | |
17 | 16 | ralimi2 | |
18 | neeq1 | |
|
19 | 18 | elrab | |
20 | 19 | simprbi | |
21 | 20 | rgen | |
22 | 17 21 | jctil | |
23 | 19 | biimpri | |
24 | 23 | imim1i | |
25 | 24 | expd | |
26 | 25 | ralimi2 | |
27 | 26 | eximi | |
28 | 22 27 | imim12i | |
29 | 11 28 | sylg | |
30 | raleq | |
|
31 | 30 | raleqbi1dv | |
32 | raleq | |
|
33 | 32 | exbidv | |
34 | 31 33 | imbi12d | |
35 | 34 | cbvalvw | |
36 | 29 35 | sylib | |