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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 2481 | 
. . 3
 | |
| 2 | df-reu 2482 | 
. . 3
 | |
| 3 | 1, 2 | anbi12i 460 | 
. 2
 | 
| 4 | df-ral 2480 | 
. . . . . . 7
 | |
| 5 | ssel 3177 | 
. . . . . . . . . . . . . 14
 | |
| 6 | anim12 344 | 
. . . . . . . . . . . . . 14
 | |
| 7 | 5, 6 | sylan 283 | 
. . . . . . . . . . . . 13
 | 
| 8 | 7 | exp4b 367 | 
. . . . . . . . . . . 12
 | 
| 9 | 8 | com23 78 | 
. . . . . . . . . . 11
 | 
| 10 | 9 | a2d 26 | 
. . . . . . . . . 10
 | 
| 11 | 10 | imp4a 349 | 
. . . . . . . . 9
 | 
| 12 | 11 | alimdv 1893 | 
. . . . . . . 8
 | 
| 13 | 12 | imp 124 | 
. . . . . . 7
 | 
| 14 | 4, 13 | sylan2b 287 | 
. . . . . 6
 | 
| 15 | euimmo 2112 | 
. . . . . 6
 | |
| 16 | 14, 15 | syl 14 | 
. . . . 5
 | 
| 17 | eu5 2092 | 
. . . . . 6
 | |
| 18 | 17 | simplbi2 385 | 
. . . . 5
 | 
| 19 | 16, 18 | syl9 72 | 
. . . 4
 | 
| 20 | 19 | imp32 257 | 
. . 3
 | 
| 21 | df-reu 2482 | 
. . 3
 | |
| 22 | 20, 21 | sylibr 134 | 
. 2
 | 
| 23 | 3, 22 | sylan2b 287 | 
1
 | 
| Colors of variables: wff set class | 
| Syntax hints:     | 
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 710 ax-5 1461 ax-7 1462 ax-gen 1463 ax-ie1 1507 ax-ie2 1508 ax-8 1518 ax-10 1519 ax-11 1520 ax-i12 1521 ax-bndl 1523 ax-4 1524 ax-17 1540 ax-i9 1544 ax-ial 1548 ax-i5r 1549 ax-ext 2178 | 
| This theorem depends on definitions: df-bi 117 df-nf 1475 df-sb 1777 df-eu 2048 df-mo 2049 df-clab 2183 df-cleq 2189 df-clel 2192 df-ral 2480 df-rex 2481 df-reu 2482 df-in 3163 df-ss 3170 | 
| This theorem is referenced by: reuss 3444 reuun1 3445 riotass2 5904 | 
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