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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 5482 |
. . 3
| |
| 2 | fnfvelrn 5779 |
. . 3
| |
| 3 | 1, 2 | sylan 283 |
. 2
|
| 4 | frn 5491 |
. . . 4
| |
| 5 | 4 | sseld 3226 |
. . 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-14 2205 ax-ext 2213 ax-sep 4207 ax-pow 4264 ax-pr 4299 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ral 2515 df-rex 2516 df-v 2804 df-sbc 3032 df-un 3204 df-in 3206 df-ss 3213 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-br 4089 df-opab 4151 df-id 4390 df-xp 4731 df-rel 4732 df-cnv 4733 df-co 4734 df-dm 4735 df-rn 4736 df-iota 5286 df-fun 5328 df-fn 5329 df-f 5330 df-fv 5334 |
| This theorem is referenced by: ffvelcdmi 5781 ffvelcdmda 5782 dffo3 5794 ffnfv 5805 ffvresb 5810 fcompt 5817 fsn2 5821 fvconst 5841 foco2 5893 fcofo 5924 cocan1 5927 isocnv 5951 isores2 5953 isopolem 5962 isosolem 5964 fovcdm 6164 off 6247 mapsncnv 6863 2dom 6979 dom1o 7001 enm 7003 xpdom2 7014 xpmapenlem 7034 fiintim 7122 isotilem 7204 updjudhf 7277 exmidomniim 7339 finacn 7418 seqf1og 10782 shftf 11390 summodclem2a 11941 isumcl 11985 mertenslem2 12096 3dvds 12424 nn0seqcvgd 12612 algrf 12616 eucalg 12630 phimullem 12796 pcmpt 12915 pcprod 12918 imasaddfnlemg 13396 imasaddflemg 13398 mhmpropd 13548 ghmsub 13837 znunit 14672 upxp 14995 uptx 14997 txhmeo 15042 cncfmet 15315 dvaddxxbr 15424 dvcj 15432 dvfre 15433 plyf 15460 plyaddlem 15472 plymullem 15473 plycolemc 15481 plyreres 15487 dvply1 15488 lgsdir 15763 lgsdi 15765 lgseisenlem3 15800 wlkpvtx 16224 wlkepvtx 16225 bj-charfunr 16405 |
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