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| Description: The two existential uniqueness expressions of eufromeq3 3830 specify the same object. |
| Ref | Expression |
|---|---|
| euobj1.1 |
|
| Ref | Expression |
|---|---|
| euobj1 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | euobj1.1 |
. . . . . . 7
| |
| 2 | 1 | eufromeq3 3830 |
. . . . . 6
|
| 3 | reuv 2307 |
. . . . . . 7
| |
| 4 | eqeq1 1890 |
. . . . . . . . 9
| |
| 5 | 4 | ralbidv 2123 |
. . . . . . . 8
|
| 6 | hbra1 2147 |
. . . . . . . . . . . 12
| |
| 7 | ax-17 1317 |
. . . . . . . . . . . 12
| |
| 8 | 6, 7 | hbrab 2258 |
. . . . . . . . . . 11
|
| 9 | 8 | hbuni 3183 |
. . . . . . . . . 10
|
| 10 | 9 | hbeleq 1997 |
. . . . . . . . 9
|
| 11 | eqeq1 1890 |
. . . . . . . . 9
| |
| 12 | 10, 11 | ralbid 2121 |
. . . . . . . 8
|
| 13 | 5, 12 | reuuni3 3812 |
. . . . . . 7
|
| 14 | 3, 13 | sylbir 218 |
. . . . . 6
|
| 15 | 2, 14 | sylbi 216 |
. . . . 5
|
| 16 | reuv 2307 |
. . . . . 6
| |
| 17 | 4 | rexbidv 2124 |
. . . . . . 7
|
| 18 | hbre1 2150 |
. . . . . . . . . . 11
| |
| 19 | 18, 7 | hbrab 2258 |
. . . . . . . . . 10
|
| 20 | 19 | hbuni 3183 |
. . . . . . . . 9
|
| 21 | 20 | hbeleq 1997 |
. . . . . . . 8
|
| 22 | eqeq1 1890 |
. . . . . . . 8
| |
| 23 | 21, 22 | rexbid 2122 |
. . . . . . 7
|
| 24 | 17, 23 | reuuni3 3812 |
. . . . . 6
|
| 25 | 16, 24 | sylbir 218 |
. . . . 5
|
| 26 | r19.29 2227 |
. . . . 5
| |
| 27 | 15, 25, 26 | syl11anc 524 |
. . . 4
|
| 28 | eqtr3 1907 |
. . . . . . 7
| |
| 29 | 17 | cbvabv 2420 |
. . . . . . . . 9
|
| 30 | rabab 2308 |
. . . . . . . . 9
| |
| 31 | 29, 30 | eqtr4i 1911 |
. . . . . . . 8
|
| 32 | 31 | unieqi 3187 |
. . . . . . 7
|
| 33 | 5 | cbvabv 2420 |
. . . . . . . . 9
|
| 34 | rabab 2308 |
. . . . . . . . 9
| |
| 35 | 33, 34 | eqtr4i 1911 |
. . . . . . . 8
|
| 36 | 35 | unieqi 3187 |
. . . . . . 7
|
| 37 | 28, 32, 36 | 3eqtr4g 1953 |
. . . . . 6
|
| 38 | 37 | ancoms 484 |
. . . . 5
|
| 39 | 38 | reximi 2198 |
. . . 4
|
| 40 | 27, 39 | syl 12 |
. . 3
|
| 41 | df-rex 2110 |
. . . 4
| |
| 42 | hbre1 2150 |
. . . . . . . 8
| |
| 43 | 42 | hbab 1875 |
. . . . . . 7
|
| 44 | 43 | hbuni 3183 |
. . . . . 6
|
| 45 | hbra1 2147 |
. . . . . . . 8
| |
| 46 | 45 | hbab 1875 |
. . . . . . 7
|
| 47 | 46 | hbuni 3183 |
. . . . . 6
|
| 48 | 44, 47 | hbeq 1995 |
. . . . 5
|
| 49 | 48 | 19.41 1448 |
. . . 4
|
| 50 | 41, 49 | bitri 190 |
. . 3
|
| 51 | 40, 50 | sylib 215 |
. 2
|
| 52 | 51 | simprd 352 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: euobj2 3835 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 1304 ax-gen 1305 ax-8 1306 ax-9 1307 ax-10 1308 ax-11 1309 ax-12 1310 ax-13 1311 ax-14 1312 ax-17 1317 ax-4 1319 ax-5o 1321 ax-6o 1324 ax-9o 1481 ax-10o 1500 ax-16 1580 ax-11o 1588 ax-ext 1865 ax-sep 3438 ax-nul 3445 ax-pow 3481 ax-un 3790 |
| This theorem depends on definitions: df-bi 164 df-or 241 df-an 242 df-3an 860 df-ex 1327 df-sb 1536 df-eu 1775 df-mo 1776 df-clab 1872 df-cleq 1877 df-clel 1880 df-ne 2019 df-ral 2109 df-rex 2110 df-reu 2111 df-rab 2112 df-v 2294 df-sbc 2454 df-csb 2541 df-dif 2597 df-un 2600 df-in 2603 df-ss 2605 df-nul 2876 df-pw 3035 df-sn 3049 df-pr 3050 df-uni 3178 |