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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 4760 |
. 2
| |
| 2 | df-dm 4759 |
. 2
| |
| 3 | vex 2816 |
. . . . 5
| |
| 4 | vex 2816 |
. . . . 5
| |
| 5 | 3, 4 | brcnv 4938 |
. . . 4
|
| 6 | 5 | exbii 1654 |
. . 3
|
| 7 | 6 | abbii 2348 |
. 2
|
| 8 | 1, 2, 7 | 3eqtri 2257 |
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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-14 2206 ax-ext 2214 ax-sep 4228 ax-pow 4287 ax-pr 4322 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-eu 2083 df-mo 2084 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-v 2815 df-un 3215 df-in 3217 df-ss 3224 df-pw 3671 df-sn 3695 df-pr 3696 df-op 3698 df-br 4110 df-opab 4172 df-cnv 4757 df-dm 4759 df-rn 4760 |
| This theorem is referenced by: dfrn3 4944 dfdm4 4948 dm0rn0 4973 dmmrnm 4976 dfrnf 4998 dfima2 5103 funcnv3 5418 |
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