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| Description: Lemma for 5-quantifier AC of Kurt Maes, Th. 4 1 <=> 4. |
| Ref | Expression |
|---|---|
| kmlem8 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ralnex 1653 |
. . . . 5
| |
| 2 | df-rex 1650 |
. . . . . . . 8
| |
| 3 | rexnal 1654 |
. . . . . . . 8
| |
| 4 | 2, 3 | bitr3 175 |
. . . . . . 7
|
| 5 | pm3.26 319 |
. . . . . . . . 9
| |
| 6 | 5 | 19.22i 1040 |
. . . . . . . 8
|
| 7 | ne0 2288 |
. . . . . . . 8
| |
| 8 | 6, 7 | sylibr 200 |
. . . . . . 7
|
| 9 | 4, 8 | sylbir 201 |
. . . . . 6
|
| 10 | 9 | r19.20si 1706 |
. . . . 5
|
| 11 | 1, 10 | sylbir 201 |
. . . 4
|
| 12 | biimt 731 |
. . . . . . . . 9
| |
| 13 | 12 | r19.20si 1706 |
. . . . . . . 8
|
| 14 | r19.15 1753 |
. . . . . . . 8
| |
| 15 | 13, 14 | syl 10 |
. . . . . . 7
|
| 16 | 15 | anbi2d 616 |
. . . . . 6
|
| 17 | 16 | exbidv 1279 |
. . . . 5
|
| 18 | kmlem2 4766 |
. . . . 5
| |
| 19 | 17, 18 | syl6rbbr 539 |
. . . 4
|
| 20 | 11, 19 | syl 10 |
. . 3
|
| 21 | 20 | pm5.74i 584 |
. 2
|
| 22 | pm4.64 226 |
. 2
| |
| 23 | 21, 22 | bitr 173 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: aceqkm 4781 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 962 ax-gen 963 ax-8 964 ax-10 966 ax-11 967 ax-12 968 ax-13 969 ax-14 970 ax-17 971 ax-4 973 ax-5o 975 ax-6o 978 ax-9o 1123 ax-10o 1140 ax-16 1210 ax-11o 1218 ax-ext 1459 ax-sep 2703 ax-pow 2742 ax-pr 2779 ax-un 2866 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-ex 981 df-sb 1172 df-eu 1382 df-mo 1383 df-clab 1464 df-cleq 1469 df-clel 1472 df-ne 1587 df-ral 1649 df-rex 1650 df-v 1812 df-dif 2049 df-un 2050 df-in 2051 df-ss 2053 df-nul 2281 df-pw 2402 df-sn 2412 df-pr 2413 df-uni 2504 |