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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 2516 |
. . 3
| |
| 2 | df-reu 2517 |
. . 3
| |
| 3 | 1, 2 | anbi12i 460 |
. 2
|
| 4 | df-ral 2515 |
. . . . . . 7
| |
| 5 | ssel 3221 |
. . . . . . . . . . . . . 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 1927 |
. . . . . . . 8
|
| 13 | 12 | imp 124 |
. . . . . . 7
|
| 14 | 4, 13 | sylan2b 287 |
. . . . . 6
|
| 15 | euimmo 2147 |
. . . . . 6
| |
| 16 | 14, 15 | syl 14 |
. . . . 5
|
| 17 | eu5 2127 |
. . . . . 6
| |
| 18 | 17 | simplbi2 385 |
. . . . 5
|
| 19 | 16, 18 | syl9 72 |
. . . 4
|
| 20 | 19 | imp32 257 |
. . 3
|
| 21 | df-reu 2517 |
. . 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-nf 1509 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-ral 2515 df-rex 2516 df-reu 2517 df-in 3206 df-ss 3213 |
| This theorem is referenced by: reuss 3488 reuun1 3489 riotass2 5999 |
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