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| Mirrors > Home > ILE Home > Th. List > imadmrn | Unicode version | ||
| Description: The image of the domain of a class is the range of the class. (Contributed by NM, 14-Aug-1994.) |
| Ref | Expression |
|---|---|
| imadmrn |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | vex 2824 |
. . . . . . 7
| |
| 2 | vex 2824 |
. . . . . . 7
| |
| 3 | 1, 2 | opeldm 4984 |
. . . . . 6
|
| 4 | 3 | pm4.71i 395 |
. . . . 5
|
| 5 | ancom 266 |
. . . . 5
| |
| 6 | 4, 5 | bitr2i 185 |
. . . 4
|
| 7 | 6 | exbii 1658 |
. . 3
|
| 8 | 7 | abbii 2354 |
. 2
|
| 9 | dfima3 5129 |
. 2
| |
| 10 | dfrn3 4969 |
. 2
| |
| 11 | 8, 9, 10 | 3eqtr4i 2269 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4249 ax-pow 4311 ax-pr 4346 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-v 2823 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-br 4131 df-opab 4193 df-xp 4780 df-cnv 4782 df-dm 4784 df-rn 4785 df-res 4786 df-ima 4787 |
| This theorem is used by: cnvimarndm 5151 foima 5620 fimadmfo 5624 f1imacnv 5656 fsn2 5882 resfunexg 5936 funiunfvdm 5969 fnexALT 6340 uniqs2 6869 mapsnd 6970 mapsn 6972 phplem4 7156 phplem4on 7169 retopbas 15624 |
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