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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 2802 |
. . . . 5
| |
| 2 | vex 2802 |
. . . . 5
| |
| 3 | 1, 2 | brcnv 4905 |
. . . 4
|
| 4 | 3 | exbii 1651 |
. . 3
|
| 5 | 4 | abbii 2345 |
. 2
|
| 6 | dfrn2 4910 |
. 2
| |
| 7 | df-dm 4729 |
. 2
| |
| 8 | 5, 6, 7 | 3eqtr4ri 2261 |
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 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-14 2203 ax-ext 2211 ax-sep 4202 ax-pow 4258 ax-pr 4293 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-nf 1507 df-sb 1809 df-eu 2080 df-mo 2081 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-v 2801 df-un 3201 df-in 3203 df-ss 3210 df-pw 3651 df-sn 3672 df-pr 3673 df-op 3675 df-br 4084 df-opab 4146 df-cnv 4727 df-dm 4729 df-rn 4730 |
| This theorem is referenced by: dmcnvcnv 4948 rncnvcnv 4949 rncoeq 4998 cnvimass 5091 cnvimarndm 5092 dminxp 5173 cnvsn0 5197 rnsnopg 5207 dmmpt 5224 dmco 5237 cores2 5241 cnvssrndm 5250 cocnvres 5253 unidmrn 5261 dfdm2 5263 cnvexg 5266 funimacnv 5397 foimacnv 5590 funcocnv2 5597 fimacnv 5764 f1opw2 6212 fopwdom 6997 sbthlemi4 7127 exmidfodomrlemim 7379 hmeores 14989 |
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