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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 3195 |
. . 3
| |
| 2 | 1 | ad2antrr 488 |
. 2
|
| 3 | df-rex 2492 |
. . . . . 6
| |
| 4 | df-reu 2493 |
. . . . . 6
| |
| 5 | 3, 4 | anbi12i 460 |
. . . . 5
|
| 6 | 1 | ancrd 326 |
. . . . . . . . . . 11
|
| 7 | 6 | anim1d 336 |
. . . . . . . . . 10
|
| 8 | an32 562 |
. . . . . . . . . 10
| |
| 9 | 7, 8 | imbitrdi 161 |
. . . . . . . . 9
|
| 10 | 9 | eximdv 1904 |
. . . . . . . 8
|
| 11 | eupick 2135 |
. . . . . . . . 9
| |
| 12 | 11 | ex 115 |
. . . . . . . 8
|
| 13 | 10, 12 | syl9 72 |
. . . . . . 7
|
| 14 | 13 | com23 78 |
. . . . . 6
|
| 15 | 14 | imp32 257 |
. . . . 5
|
| 16 | 5, 15 | sylan2b 287 |
. . . 4
|
| 17 | 16 | expcomd 1462 |
. . 3
|
| 18 | 17 | imp 124 |
. 2
|
| 19 | 2, 18 | impbid 129 |
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 711 ax-5 1471 ax-7 1472 ax-gen 1473 ax-ie1 1517 ax-ie2 1518 ax-8 1528 ax-10 1529 ax-11 1530 ax-i12 1531 ax-bndl 1533 ax-4 1534 ax-17 1550 ax-i9 1554 ax-ial 1558 ax-i5r 1559 ax-ext 2189 |
| This theorem depends on definitions: df-bi 117 df-nf 1485 df-sb 1787 df-eu 2058 df-mo 2059 df-clab 2194 df-cleq 2200 df-clel 2203 df-rex 2492 df-reu 2493 df-in 3180 df-ss 3187 |
| This theorem is referenced by: supelti 7130 |
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