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| Mirrors > Home > ILE Home > Th. List > ffvelcdm | Unicode version | ||
| Description: A function's value belongs to its codomain. (Contributed by NM, 12-Aug-1999.) |
| Ref | Expression |
|---|---|
| ffvelcdm |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ffn 5489 |
. . 3
| |
| 2 | fnfvelrn 5787 |
. . 3
| |
| 3 | 1, 2 | sylan 283 |
. 2
|
| 4 | frn 5498 |
. . . 4
| |
| 5 | 4 | sseld 3227 |
. . 3
|
| 6 | 5 | adantr 276 |
. 2
|
| 7 | 3, 6 | mpd 13 |
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 2205 ax-ext 2213 ax-sep 4212 ax-pow 4270 ax-pr 4305 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-ral 2516 df-rex 2517 df-v 2805 df-sbc 3033 df-un 3205 df-in 3207 df-ss 3214 df-pw 3658 df-sn 3679 df-pr 3680 df-op 3682 df-uni 3899 df-br 4094 df-opab 4156 df-id 4396 df-xp 4737 df-rel 4738 df-cnv 4739 df-co 4740 df-dm 4741 df-rn 4742 df-iota 5293 df-fun 5335 df-fn 5336 df-f 5337 df-fv 5341 |
| This theorem is referenced by: ffvelcdmi 5789 ffvelcdmda 5790 dffo3 5802 ffnfv 5813 ffvresb 5818 fcompt 5825 fsn2 5829 fvconst 5850 foco2 5904 fcofo 5935 cocan1 5938 isocnv 5962 isores2 5964 isopolem 5973 isosolem 5975 fovcdm 6175 off 6257 mapsncnv 6907 2dom 7023 dom1o 7045 enm 7047 xpdom2 7058 xpmapenlem 7078 fiintim 7166 isotilem 7265 updjudhf 7338 exmidomniim 7400 finacn 7479 seqf1og 10846 shftf 11470 summodclem2a 12022 isumcl 12066 mertenslem2 12177 3dvds 12505 nn0seqcvgd 12693 algrf 12697 eucalg 12711 phimullem 12877 pcmpt 12996 pcprod 12999 imasaddfnlemg 13477 imasaddflemg 13479 mhmpropd 13629 ghmsub 13918 znunit 14755 upxp 15083 uptx 15085 txhmeo 15130 cncfmet 15403 dvaddxxbr 15512 dvcj 15520 dvfre 15521 plyf 15548 plyaddlem 15560 plymullem 15561 plycolemc 15569 plyreres 15575 dvply1 15576 lgsdir 15854 lgsdi 15856 lgseisenlem3 15891 wlkpvtx 16315 wlkepvtx 16316 bj-charfunr 16526 |
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