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| Description: The range of a set is a set. Corollary 6.8(3) of [TakeutiZaring] p. 26. Similar to Lemma 3D of [Enderton] p. 41. |
| Ref | Expression |
|---|---|
| rnexg |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | uniexg 2862 |
. 2
| |
| 2 | uniexg 2862 |
. 2
| |
| 3 | ssun2 2184 |
. . . 4
| |
| 4 | dmrnssfld 3343 |
. . . 4
| |
| 5 | 3, 4 | sstri 2063 |
. . 3
|
| 6 | ssexg 2711 |
. . 3
| |
| 7 | 5, 6 | mpan 693 |
. 2
|
| 8 | 1, 2, 7 | 3syl 20 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: imaexg 3400 elxp4 3439 elxp5 3440 xpexr 3465 xpexr2 3466 cnvexg 3505 coexg 3510 cofunexg 3566 funrnex 3599 ffoss 3696 fvclex 3841 tz7.44lem1 3912 2ndval 4066 fo2nd 4076 qsexg 4278 xpmapenlem2 4477 aceq3lem 4704 aceq5 4712 ac6lem 4726 fodom 4770 infxpidmlem8 7502 retopbas 7597 isgrp 7975 grpidval 7992 grpinvfval 8000 grpinvval 8001 grpinvf 8014 grpdivfval 8016 grplactfval 8032 issubgi 8059 ghgrpilem4 8073 isvc 8138 bafval 8161 0vfval 8163 isnv 8170 vsfval 8194 elghomlem1 10287 elghomlem2 10288 cayleylem1 10316 cayleylem2 10317 cayleylem3 10318 cayleythlem 10320 aidm 10527 aidmold 10528 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 959 ax-gen 960 ax-8 961 ax-10 963 ax-11 964 ax-12 965 ax-13 966 ax-14 967 ax-17 968 ax-4 970 ax-5o 972 ax-6o 975 ax-9o 1119 ax-10o 1136 ax-16 1206 ax-11o 1213 ax-ext 1452 ax-sep 2693 ax-pow 2732 ax-pr 2769 ax-un 2857 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-ex 978 df-sb 1168 df-eu 1375 df-mo 1376 df-clab 1457 df-cleq 1462 df-clel 1465 df-ne 1579 df-v 1803 df-dif 2039 df-un 2040 df-in 2041 df-ss 2043 df-nul 2271 df-pw 2392 df-sn 2402 df-pr 2403 df-op 2406 df-uni 2494 df-br 2610 df-opab 2657 df-cnv 3176 df-dm 3178 df-rn 3179 |