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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 2775 |
. . . . 5
| |
| 2 | vex 2775 |
. . . . 5
| |
| 3 | 1, 2 | brcnv 4861 |
. . . 4
|
| 4 | 3 | exbii 1628 |
. . 3
|
| 5 | 4 | abbii 2321 |
. 2
|
| 6 | dfrn2 4866 |
. 2
| |
| 7 | df-dm 4685 |
. 2
| |
| 8 | 5, 6, 7 | 3eqtr4ri 2237 |
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 1470 ax-7 1471 ax-gen 1472 ax-ie1 1516 ax-ie2 1517 ax-8 1527 ax-10 1528 ax-11 1529 ax-i12 1530 ax-bndl 1532 ax-4 1533 ax-17 1549 ax-i9 1553 ax-ial 1557 ax-i5r 1558 ax-14 2179 ax-ext 2187 ax-sep 4162 ax-pow 4218 ax-pr 4253 |
| This theorem depends on definitions: df-bi 117 df-3an 983 df-tru 1376 df-nf 1484 df-sb 1786 df-eu 2057 df-mo 2058 df-clab 2192 df-cleq 2198 df-clel 2201 df-nfc 2337 df-v 2774 df-un 3170 df-in 3172 df-ss 3179 df-pw 3618 df-sn 3639 df-pr 3640 df-op 3642 df-br 4045 df-opab 4106 df-cnv 4683 df-dm 4685 df-rn 4686 |
| This theorem is referenced by: dmcnvcnv 4902 rncnvcnv 4903 rncoeq 4952 cnvimass 5045 cnvimarndm 5046 dminxp 5127 cnvsn0 5151 rnsnopg 5161 dmmpt 5178 dmco 5191 cores2 5195 cnvssrndm 5204 cocnvres 5207 unidmrn 5215 dfdm2 5217 cnvexg 5220 funimacnv 5350 foimacnv 5540 funcocnv2 5547 fimacnv 5709 f1opw2 6152 fopwdom 6933 sbthlemi4 7062 exmidfodomrlemim 7309 hmeores 14787 |
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