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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 5308 |
. 2
| |
| 2 | eqid 2204 |
. . . 4
| |
| 3 | 2 | dmmptss 5178 |
. . 3
|
| 4 | ssexg 4182 |
. . 3
| |
| 5 | 3, 4 | mpan 424 |
. 2
|
| 6 | funex 5806 |
. 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 710 ax-5 1469 ax-7 1470 ax-gen 1471 ax-ie1 1515 ax-ie2 1516 ax-8 1526 ax-10 1527 ax-11 1528 ax-i12 1529 ax-bndl 1531 ax-4 1532 ax-17 1548 ax-i9 1552 ax-ial 1556 ax-i5r 1557 ax-14 2178 ax-ext 2186 ax-coll 4158 ax-sep 4161 ax-pow 4217 ax-pr 4252 |
| This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1375 df-nf 1483 df-sb 1785 df-eu 2056 df-mo 2057 df-clab 2191 df-cleq 2197 df-clel 2200 df-nfc 2336 df-ral 2488 df-rex 2489 df-reu 2490 df-rab 2492 df-v 2773 df-sbc 2998 df-csb 3093 df-un 3169 df-in 3171 df-ss 3178 df-pw 3617 df-sn 3638 df-pr 3639 df-op 3641 df-uni 3850 df-iun 3928 df-br 4044 df-opab 4105 df-mpt 4106 df-id 4339 df-xp 4680 df-rel 4681 df-cnv 4682 df-co 4683 df-dm 4684 df-rn 4685 df-res 4686 df-ima 4687 df-iota 5231 df-fun 5272 df-fn 5273 df-f 5274 df-f1 5275 df-fo 5276 df-f1o 5277 df-fv 5278 |
| This theorem is referenced by: mptex 5809 mptexd 5810 offval 6165 abrexexg 6202 xpexgALT 6217 offval3 6218 iunon 6369 mptelixpg 6820 updjud 7183 mkvprop 7259 cc3 7379 iseqf1olemqpcl 10652 seq3f1olemqsum 10656 seq3f1olemstep 10657 negfi 11510 climmpt 11582 restval 13048 mulgnngsum 13434 ntrfval 14543 clsfval 14544 neifval 14583 cnprcl2k 14649 upxp 14715 |
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