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| Mirrors > Home > ILE Home > Th. List > reuss2 | Unicode version | ||
| Description: Transfer uniqueness to a smaller subclass. (Contributed by NM, 20-Oct-2005.) |
| Ref | Expression |
|---|---|
| reuss2 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-rex 2354 |
. . 3
| |
| 2 | df-reu 2355 |
. . 3
| |
| 3 | 1, 2 | anbi12i 447 |
. 2
|
| 4 | df-ral 2353 |
. . . . . . 7
| |
| 5 | ssel 2993 |
. . . . . . . . . . . . . 14
| |
| 6 | prth 336 |
. . . . . . . . . . . . . 14
| |
| 7 | 5, 6 | sylan 277 |
. . . . . . . . . . . . 13
|
| 8 | 7 | exp4b 359 |
. . . . . . . . . . . 12
|
| 9 | 8 | com23 77 |
. . . . . . . . . . 11
|
| 10 | 9 | a2d 26 |
. . . . . . . . . 10
|
| 11 | 10 | imp4a 341 |
. . . . . . . . 9
|
| 12 | 11 | alimdv 1800 |
. . . . . . . 8
|
| 13 | 12 | imp 122 |
. . . . . . 7
|
| 14 | 4, 13 | sylan2b 281 |
. . . . . 6
|
| 15 | euimmo 2008 |
. . . . . 6
| |
| 16 | 14, 15 | syl 14 |
. . . . 5
|
| 17 | eu5 1988 |
. . . . . 6
| |
| 18 | 17 | simplbi2 377 |
. . . . 5
|
| 19 | 16, 18 | syl9 71 |
. . . 4
|
| 20 | 19 | imp32 253 |
. . 3
|
| 21 | df-reu 2355 |
. . 3
| |
| 22 | 20, 21 | sylibr 132 |
. 2
|
| 23 | 3, 22 | sylan2b 281 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-io 662 ax-5 1376 ax-7 1377 ax-gen 1378 ax-ie1 1422 ax-ie2 1423 ax-8 1435 ax-10 1436 ax-11 1437 ax-i12 1438 ax-bndl 1439 ax-4 1440 ax-17 1459 ax-i9 1463 ax-ial 1467 ax-i5r 1468 ax-ext 2063 |
| This theorem depends on definitions: df-bi 115 df-nf 1390 df-sb 1686 df-eu 1944 df-mo 1945 df-clab 2068 df-cleq 2074 df-clel 2077 df-ral 2353 df-rex 2354 df-reu 2355 df-in 2979 df-ss 2986 |
| This theorem is referenced by: reuss 3245 reuun1 3246 riotass2 5514 |
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