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Mirrors > Home > ILE Home > Th. List > brprcneu | Unicode version |
Description: If is a proper class, then there is no unique binary relationship with as the first element. (Contributed by Scott Fenton, 7-Oct-2017.) |
Ref | Expression |
---|---|
brprcneu |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dtruex 4283 | . . . . . . . . 9 | |
2 | equcom 1593 | . . . . . . . . . . 11 | |
3 | 2 | notbii 594 | . . . . . . . . . 10 |
4 | 3 | exbii 1496 | . . . . . . . . 9 |
5 | 1, 4 | mpbir 134 | . . . . . . . 8 |
6 | 5 | jctr 298 | . . . . . . 7 |
7 | 19.42v 1786 | . . . . . . 7 | |
8 | 6, 7 | sylibr 137 | . . . . . 6 |
9 | opprc1 3571 | . . . . . . . 8 | |
10 | 9 | eleq1d 2106 | . . . . . . 7 |
11 | opprc1 3571 | . . . . . . . . . . . 12 | |
12 | 11 | eleq1d 2106 | . . . . . . . . . . 11 |
13 | 10, 12 | anbi12d 442 | . . . . . . . . . 10 |
14 | anidm 376 | . . . . . . . . . 10 | |
15 | 13, 14 | syl6bb 185 | . . . . . . . . 9 |
16 | 15 | anbi1d 438 | . . . . . . . 8 |
17 | 16 | exbidv 1706 | . . . . . . 7 |
18 | 10, 17 | imbi12d 223 | . . . . . 6 |
19 | 8, 18 | mpbiri 157 | . . . . 5 |
20 | df-br 3765 | . . . . 5 | |
21 | df-br 3765 | . . . . . . . 8 | |
22 | 20, 21 | anbi12i 433 | . . . . . . 7 |
23 | 22 | anbi1i 431 | . . . . . 6 |
24 | 23 | exbii 1496 | . . . . 5 |
25 | 19, 20, 24 | 3imtr4g 194 | . . . 4 |
26 | 25 | eximdv 1760 | . . 3 |
27 | exanaliim 1538 | . . . . . 6 | |
28 | 27 | eximi 1491 | . . . . 5 |
29 | exnalim 1537 | . . . . 5 | |
30 | 28, 29 | syl 14 | . . . 4 |
31 | breq2 3768 | . . . . . 6 | |
32 | 31 | mo4 1961 | . . . . 5 |
33 | 32 | notbii 594 | . . . 4 |
34 | 30, 33 | sylibr 137 | . . 3 |
35 | 26, 34 | syl6 29 | . 2 |
36 | eu5 1947 | . . . 4 | |
37 | 36 | notbii 594 | . . 3 |
38 | imnan 624 | . . 3 | |
39 | 37, 38 | bitr4i 176 | . 2 |
40 | 35, 39 | sylibr 137 | 1 |
Colors of variables: wff set class |
Syntax hints: wn 3 wi 4 wa 97 wal 1241 wex 1381 wcel 1393 weu 1900 wmo 1901 cvv 2557 c0 3224 cop 3378 class class class wbr 3764 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 99 ax-ia2 100 ax-ia3 101 ax-in1 544 ax-in2 545 ax-io 630 ax-5 1336 ax-7 1337 ax-gen 1338 ax-ie1 1382 ax-ie2 1383 ax-8 1395 ax-10 1396 ax-11 1397 ax-i12 1398 ax-bndl 1399 ax-4 1400 ax-14 1405 ax-17 1419 ax-i9 1423 ax-ial 1427 ax-i5r 1428 ax-ext 2022 ax-sep 3875 ax-pow 3927 ax-setind 4262 |
This theorem depends on definitions: df-bi 110 df-3an 887 df-tru 1246 df-fal 1249 df-nf 1350 df-sb 1646 df-eu 1903 df-mo 1904 df-clab 2027 df-cleq 2033 df-clel 2036 df-nfc 2167 df-ne 2206 df-ral 2311 df-v 2559 df-dif 2920 df-un 2922 df-in 2924 df-ss 2931 df-nul 3225 df-pw 3361 df-sn 3381 df-pr 3382 df-op 3384 df-br 3765 |
This theorem is referenced by: fvprc 5172 |
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