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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 2809 |
. . 3
| |
| 2 | hbopab2 2810 |
. . 3
| |
| 3 | 1, 2 | dfdmf 3302 |
. 2
|
| 4 | opabid 2806 |
. . . 4
| |
| 5 | 4 | exbii 1050 |
. . 3
|
| 6 | 5 | abbii 1573 |
. 2
|
| 7 | 3, 6 | eqtr 1493 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: dmopabss 3317 dmopab3 3318 zfrep6 3610 dmoprab 3997 aceq3 4716 infmap2lem1 7539 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 961 ax-gen 962 ax-8 963 ax-9 964 ax-10 965 ax-11 966 ax-12 967 ax-13 968 ax-14 969 ax-17 970 ax-4 972 ax-5o 974 ax-6o 977 ax-9o 1122 ax-10o 1139 ax-16 1209 ax-11o 1217 ax-ext 1458 ax-sep 2699 ax-pow 2738 ax-pr 2775 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-ex 980 df-sb 1171 df-eu 1381 df-mo 1382 df-clab 1463 df-cleq 1468 df-clel 1471 df-ne 1585 df-v 1809 df-dif 2046 df-un 2047 df-in 2048 df-ss 2050 df-nul 2278 df-pw 2399 df-sn 2409 df-pr 2410 df-op 2413 df-br 2616 df-opab 2663 df-dm 3184 |