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| Mirrors > Home > ILE Home > Th. List > dfrn2 | Unicode version | ||
| Description: Alternate definition of range. Definition 4 of [Suppes] p. 60. (Contributed by NM, 27-Dec-1996.) |
| Ref | Expression |
|---|---|
| dfrn2 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-rn 4704 |
. 2
| |
| 2 | df-dm 4703 |
. 2
| |
| 3 | vex 2779 |
. . . . 5
| |
| 4 | vex 2779 |
. . . . 5
| |
| 5 | 3, 4 | brcnv 4879 |
. . . 4
|
| 6 | 5 | exbii 1629 |
. . 3
|
| 7 | 6 | abbii 2323 |
. 2
|
| 8 | 1, 2, 7 | 3eqtri 2232 |
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: dfrn3 4885 dfdm4 4889 dm0rn0 4914 dmmrnm 4916 dfrnf 4938 dfima2 5043 funcnv3 5355 |
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