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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: wi 4 wa 102 wb 103 wex 1421 wcel 1433 weu 1941 wrex 2349 wreu 2350 wss 2973 |
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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