| Metamath Proof Explorer |
< Previous
Next >
Related theorems Unicode version |
| Description: Dominance relation. |
| Ref | Expression |
|---|---|
| brdomg |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | f1eq2 3768 |
. . . . 5
| |
| 2 | 1 | exbidv 1317 |
. . . 4
|
| 3 | f1eq3 3769 |
. . . . 5
| |
| 4 | 3 | exbidv 1317 |
. . . 4
|
| 5 | df-dom 4510 |
. . . 4
| |
| 6 | 2, 4, 5 | brabg 2895 |
. . 3
|
| 7 | 6 | ex 371 |
. 2
|
| 8 | reldom 4514 |
. . . . 5
| |
| 9 | 8 | brrelexi 3291 |
. . . 4
|
| 10 | f1f 3772 |
. . . . . 6
| |
| 11 | fdm 3738 |
. . . . . . 7
| |
| 12 | visset 1859 |
. . . . . . . 8
| |
| 13 | 12 | dmex 3447 |
. . . . . . 7
|
| 14 | 11, 13 | syl6eqelr 1600 |
. . . . . 6
|
| 15 | 10, 14 | syl 10 |
. . . . 5
|
| 16 | 15 | 19.23aiv 1333 |
. . . 4
|
| 17 | 9, 16 | pm5.21ni 682 |
. . 3
|
| 18 | 17 | a1d 12 |
. 2
|
| 19 | 7, 18 | pm2.61i 124 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: brdom 4519 f1domg 4537 fodomr 4628 hartog 11436 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 998 ax-gen 999 ax-8 1000 ax-10 1002 ax-11 1003 ax-12 1004 ax-13 1005 ax-14 1006 ax-17 1007 ax-4 1009 ax-5o 1011 ax-6o 1014 ax-9o 1159 ax-10o 1177 ax-16 1247 ax-11o 1255 ax-ext 1500 ax-sep 2777 ax-pow 2818 ax-pr 2855 ax-un 3089 |
| This theorem depends on definitions: df-bi 145 df-or 222 df-an 223 df-ex 1017 df-sb 1209 df-eu 1421 df-mo 1422 df-clab 1506 df-cleq 1511 df-clel 1514 df-ne 1630 df-v 1858 df-dif 2101 df-un 2102 df-in 2103 df-ss 2105 df-nul 2333 df-pw 2459 df-sn 2470 df-pr 2471 df-op 2474 df-uni 2570 df-br 2693 df-opab 2741 df-xp 3265 df-rel 3266 df-cnv 3267 df-dm 3269 df-rn 3270 df-fn 3274 df-f 3275 df-f1 3276 df-dom 4510 |