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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 4862 |
. . . 4
|
| 4 | 3 | exbii 1628 |
. . 3
|
| 5 | 4 | abbii 2321 |
. 2
|
| 6 | dfrn2 4867 |
. 2
| |
| 7 | df-dm 4686 |
. 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 4163 ax-pow 4219 ax-pr 4254 |
| 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 4046 df-opab 4107 df-cnv 4684 df-dm 4686 df-rn 4687 |
| This theorem is referenced by: dmcnvcnv 4903 rncnvcnv 4904 rncoeq 4953 cnvimass 5046 cnvimarndm 5047 dminxp 5128 cnvsn0 5152 rnsnopg 5162 dmmpt 5179 dmco 5192 cores2 5196 cnvssrndm 5205 cocnvres 5208 unidmrn 5216 dfdm2 5218 cnvexg 5221 funimacnv 5351 foimacnv 5542 funcocnv2 5549 fimacnv 5711 f1opw2 6154 fopwdom 6935 sbthlemi4 7064 exmidfodomrlemim 7311 hmeores 14820 |
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