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| Mirrors > Home > ILE Home > Th. List > mptexg | Unicode version | ||
| Description: If the domain of a function given by maps-to notation is a set, the function is a set. (Contributed by FL, 6-Jun-2011.) (Revised by Mario Carneiro, 31-Aug-2015.) |
| Ref | Expression |
|---|---|
| mptexg |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | funmpt 5362 |
. 2
| |
| 2 | eqid 2229 |
. . . 4
| |
| 3 | 2 | dmmptss 5231 |
. . 3
|
| 4 | ssexg 4226 |
. . 3
| |
| 5 | 3, 4 | mpan 424 |
. 2
|
| 6 | funex 5872 |
. 2
| |
| 7 | 1, 5, 6 | sylancr 414 |
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 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-14 2203 ax-ext 2211 ax-coll 4202 ax-sep 4205 ax-pow 4262 ax-pr 4297 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-nf 1507 df-sb 1809 df-eu 2080 df-mo 2081 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ral 2513 df-rex 2514 df-reu 2515 df-rab 2517 df-v 2802 df-sbc 3030 df-csb 3126 df-un 3202 df-in 3204 df-ss 3211 df-pw 3652 df-sn 3673 df-pr 3674 df-op 3676 df-uni 3892 df-iun 3970 df-br 4087 df-opab 4149 df-mpt 4150 df-id 4388 df-xp 4729 df-rel 4730 df-cnv 4731 df-co 4732 df-dm 4733 df-rn 4734 df-res 4735 df-ima 4736 df-iota 5284 df-fun 5326 df-fn 5327 df-f 5328 df-f1 5329 df-fo 5330 df-f1o 5331 df-fv 5332 |
| This theorem is referenced by: mptex 5875 mptexd 5876 offval 6238 abrexexg 6275 xpexgALT 6290 offval3 6291 iunon 6445 mptelixpg 6898 updjud 7272 mkvprop 7348 cc3 7477 iseqf1olemqpcl 10761 seq3f1olemqsum 10765 seq3f1olemstep 10766 negfi 11779 climmpt 11851 restval 13318 mulgnngsum 13704 ntrfval 14814 clsfval 14815 neifval 14854 cnprcl2k 14920 upxp 14986 |
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