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| Mirrors > Home > ILE Home > Th. List > dfdm4 | Unicode version | ||
| Description: Alternate definition of domain. (Contributed by NM, 28-Dec-1996.) |
| Ref | Expression |
|---|---|
| dfdm4 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | vex 2779 |
. . . . 5
| |
| 2 | vex 2779 |
. . . . 5
| |
| 3 | 1, 2 | brcnv 4879 |
. . . 4
|
| 4 | 3 | exbii 1629 |
. . 3
|
| 5 | 4 | abbii 2323 |
. 2
|
| 6 | dfrn2 4884 |
. 2
| |
| 7 | df-dm 4703 |
. 2
| |
| 8 | 5, 6, 7 | 3eqtr4ri 2239 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 711 ax-5 1471 ax-7 1472 ax-gen 1473 ax-ie1 1517 ax-ie2 1518 ax-8 1528 ax-10 1529 ax-11 1530 ax-i12 1531 ax-bndl 1533 ax-4 1534 ax-17 1550 ax-i9 1554 ax-ial 1558 ax-i5r 1559 ax-14 2181 ax-ext 2189 ax-sep 4178 ax-pow 4234 ax-pr 4269 |
| This theorem depends on definitions: df-bi 117 df-3an 983 df-tru 1376 df-nf 1485 df-sb 1787 df-eu 2058 df-mo 2059 df-clab 2194 df-cleq 2200 df-clel 2203 df-nfc 2339 df-v 2778 df-un 3178 df-in 3180 df-ss 3187 df-pw 3628 df-sn 3649 df-pr 3650 df-op 3652 df-br 4060 df-opab 4122 df-cnv 4701 df-dm 4703 df-rn 4704 |
| This theorem is referenced by: dmcnvcnv 4921 rncnvcnv 4922 rncoeq 4971 cnvimass 5064 cnvimarndm 5065 dminxp 5146 cnvsn0 5170 rnsnopg 5180 dmmpt 5197 dmco 5210 cores2 5214 cnvssrndm 5223 cocnvres 5226 unidmrn 5234 dfdm2 5236 cnvexg 5239 funimacnv 5369 foimacnv 5562 funcocnv2 5569 fimacnv 5732 f1opw2 6175 fopwdom 6958 sbthlemi4 7088 exmidfodomrlemim 7340 hmeores 14902 |
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