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| Mirrors > Home > ILE Home > Th. List > reupick | Unicode version | ||
| Description: Restricted uniqueness "picks" a member of a subclass. (Contributed by NM, 21-Aug-1999.) |
| Ref | Expression |
|---|---|
| reupick |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ssel 2993 |
. . 3
| |
| 2 | 1 | ad2antrr 471 |
. 2
|
| 3 | df-rex 2354 |
. . . . . 6
| |
| 4 | df-reu 2355 |
. . . . . 6
| |
| 5 | 3, 4 | anbi12i 447 |
. . . . 5
|
| 6 | 1 | ancrd 319 |
. . . . . . . . . . 11
|
| 7 | 6 | anim1d 329 |
. . . . . . . . . 10
|
| 8 | an32 526 |
. . . . . . . . . 10
| |
| 9 | 7, 8 | syl6ib 159 |
. . . . . . . . 9
|
| 10 | 9 | eximdv 1801 |
. . . . . . . 8
|
| 11 | eupick 2020 |
. . . . . . . . 9
| |
| 12 | 11 | ex 113 |
. . . . . . . 8
|
| 13 | 10, 12 | syl9 71 |
. . . . . . 7
|
| 14 | 13 | com23 77 |
. . . . . 6
|
| 15 | 14 | imp32 253 |
. . . . 5
|
| 16 | 5, 15 | sylan2b 281 |
. . . 4
|
| 17 | 16 | expcomd 1370 |
. . 3
|
| 18 | 17 | imp 122 |
. 2
|
| 19 | 2, 18 | impbid 127 |
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-rex 2354 df-reu 2355 df-in 2979 df-ss 2986 |
| This theorem is referenced by: supelti 6415 |
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