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| Description: A member of a function's range is a value of the function. |
| Ref | Expression |
|---|---|
| fvelrnb |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fnrnfv 4718 |
. . 3
| |
| 2 | 1 | eleq2d 1964 |
. 2
|
| 3 | fvex 4689 |
. . . . . 6
| |
| 4 | eleq1 1957 |
. . . . . 6
| |
| 5 | 3, 4 | mpbii 210 |
. . . . 5
|
| 6 | 5 | a1i 8 |
. . . 4
|
| 7 | 6 | r19.23aiv 2211 |
. . 3
|
| 8 | eqeq1 1890 |
. . . . 5
| |
| 9 | eqcom 1886 |
. . . . 5
| |
| 10 | 8, 9 | syl6bb 595 |
. . . 4
|
| 11 | 10 | rexbidv 2124 |
. . 3
|
| 12 | 7, 11 | elab3 2412 |
. 2
|
| 13 | 2, 12 | syl6bb 595 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: elrnopabg 4773 chfnrn 4775 ffnfv 4801 fconstfv 4825 elunirnALT 4845 isoini 4877 elrnoprabg 5066 canth 5112 mapenlem2 5584 ordiso 5683 ordtypelem4 5687 inf0 5712 inf3lem6 5724 noinfep 5747 omsubinit 5890 aceq5 5902 zorn2lem4 5953 isinfcard 6035 fsequb2 7703 om2uzrani 7711 seq1ublem 8163 climsupi 8415 cvgcmpubi 8446 reeff1o 8691 unbenlem 8773 ruclem33 8811 ruclem35 8813 ruclem37 8815 ghgrpilem2 9442 ubthlem6 9877 fipreima 10175 bra11 11679 cnvbraval 11681 pjssdif1i 11747 pjhmopidm 11754 ghomgrpilem2 13629 bwt2 14960 ordisoOLD 15374 ordtypelem4OLD 15378 omsubinitOLD 15399 hscptsscld 15434 rnelfmlem 15592 rnelfm 15593 fmfnfmlem2 15595 tailmap 15636 tailfb 15639 filnetlem5 15644 indexdom 15754 fipreimaOLD 15756 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 1304 ax-gen 1305 ax-8 1306 ax-9 1307 ax-10 1308 ax-11 1309 ax-12 1310 ax-13 1311 ax-14 1312 ax-17 1317 ax-4 1319 ax-5o 1321 ax-6o 1324 ax-9o 1481 ax-10o 1500 ax-16 1580 ax-11o 1588 ax-ext 1865 ax-sep 3438 ax-nul 3445 ax-pow 3481 ax-pr 3524 ax-un 3790 |
| This theorem depends on definitions: df-bi 164 df-or 241 df-an 242 df-ex 1327 df-sb 1536 df-eu 1775 df-mo 1776 df-clab 1872 df-cleq 1877 df-clel 1880 df-ne 2019 df-ral 2109 df-rex 2110 df-v 2294 df-dif 2597 df-un 2600 df-in 2603 df-ss 2605 df-nul 2876 df-pw 3035 df-sn 3049 df-pr 3050 df-op 3053 df-uni 3178 df-br 3339 df-opab 3396 df-id 3586 df-xp 4000 df-cnv 4002 df-co 4003 df-dm 4004 df-rn 4005 df-res 4006 df-ima 4007 df-fun 4008 df-fn 4009 df-fv 4014 |