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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 5528 |
. . 3
| |
| 2 | fnfvelrn 5831 |
. . 3
| |
| 3 | 1, 2 | sylan 283 |
. 2
|
| 4 | frn 5537 |
. . . 4
| |
| 5 | 4 | sseld 3247 |
. . 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 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 4244 ax-pow 4306 ax-pr 4341 |
| This theorem 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-sbc 3052 df-un 3224 df-in 3226 df-ss 3233 df-pw 3687 df-sn 3711 df-pr 3712 df-op 3714 df-uni 3931 df-br 4126 df-opab 4188 df-id 4433 df-xp 4775 df-rel 4776 df-cnv 4777 df-co 4778 df-dm 4779 df-rn 4780 df-iota 5332 df-fun 5374 df-fn 5375 df-f 5376 df-fv 5380 |
| This theorem is referenced by: ffvelcdmi 5833 ffvelcdmda 5834 dffo3 5846 ffnfv 5857 ffvresb 5862 fcompt 5869 fsn2 5873 fvconst 5894 foco2 5949 fcofo 5980 cocan1 5983 isocnv 6007 isores2 6009 isopolem 6018 isosolem 6020 fovcdm 6222 off 6305 mapsncnv 6967 2dom 7083 dom1o 7106 enm 7108 xpdom2 7119 xpmapenlem 7139 fiintim 7228 isotilem 7336 updjudhf 7409 exmidomniim 7471 finacn 7550 seqf1og 10936 hashf1lem1 11263 shftf 11573 summodclem2a 12126 isumcl 12170 mertenslem2 12281 3dvds 12609 nn0seqcvgd 12797 algrf 12801 eucalg 12815 phimullem 12981 pcmpt 13100 pcprod 13103 imasaddfnlemg 13612 imasaddflemg 13614 mhmpropd 13750 ghmsub 14031 znunit 14966 upxp 15296 uptx 15298 txhmeo 15343 cncfmet 15616 dvaddxxbr 15725 dvcj 15733 dvfre 15734 plyf 15761 plyaddlem 15773 plymullem 15774 plycolemc 15782 plyreres 15788 dvply1 15789 lgsdir 16068 lgsdi 16070 lgseisenlem3 16105 wlkpvtx 16529 wlkepvtx 16530 bj-charfunr 16750 |
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