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Related theorems Unicode version |
| Description: The domain of a class of ordered pairs. |
| Ref | Expression |
|---|---|
| dmopab |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | hbopab1 2112 |
. . 3
| |
| 2 | hbopab2 2113 |
. . 3
| |
| 3 | 1, 2 | dfdmf 2526 |
. 2
|
| 4 | opabid 2099 |
. . . 4
| |
| 5 | 4 | biex 733 |
. . 3
|
| 6 | 5 | biabi 1181 |
. 2
|
| 7 | 3, 6 | eqtr 1119 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: dmopabss 2540 dmopab2 2541 zfrep6 2744 dmoprab 3031 aceq3 3556 infmap2lem1 4951 |
| This theorem was proved from axioms: ax-1 3 ax-2 4 ax-3 5 ax-mp 6 ax-4 673 ax-5 674 ax-6 675 ax-7 676 ax-gen 677 ax-8 798 ax-9 799 ax-10 800 ax-11 801 ax-12 802 ax-13 804 ax-14 805 ax-16 922 ax-17 925 ax-ext 1074 ax-rep 1075 ax-pow 1077 |
| This theorem depends on definitions: df-bi 128 df-or 197 df-an 198 df-ex 679 df-sb 853 df-clab 1093 df-cleq 1097 df-clel 1099 df-v 1349 df-dif 1489 df-un 1490 df-in 1491 df-ss 1492 df-nul 1708 df-pw 1799 df-sn 1811 df-pr 1812 df-op 1815 df-br 2063 df-opab 2098 df-dm 2428 |