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| Mirrors > Home > ILE Home > Th. List > mptrcl | Unicode version | ||
| Description: Reverse closure for a mapping: If the function value of a mapping has a member, the argument belongs to the base class of the mapping. (Contributed by AV, 4-Apr-2020.) (Revised by Jim Kingdon, 27-Mar-2023.) |
| Ref | Expression |
|---|---|
| fvmpt2.1 |
|
| Ref | Expression |
|---|---|
| mptrcl |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fvmpt2.1 |
. . 3
| |
| 2 | 1 | dmmptss 5287 |
. 2
|
| 3 | 1 | funmpt2 5419 |
. . . 4
|
| 4 | funrel 5397 |
. . . 4
| |
| 5 | 3, 4 | ax-mp 5 |
. . 3
|
| 6 | relelfvdm 5730 |
. . 3
| |
| 7 | 5, 6 | mpan 428 |
. 2
|
| 8 | 2, 7 | sselid 3246 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on 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 4251 ax-pow 4313 ax-pr 4348 |
| This proof 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-rab 2537 df-v 2823 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-br 4132 df-opab 4194 df-mpt 4195 df-id 4440 df-xp 4782 df-rel 4783 df-cnv 4784 df-co 4785 df-dm 4786 df-rn 4787 df-res 4788 df-ima 4789 df-iota 5340 df-fun 5382 df-fv 5388 |
| This theorem is used by: indval0 9306 bitsval 12734 divsfval 13707 submrcl 13836 issubg 14034 isnsg 14063 cntrval 14150 cntzval 14152 cntzrcl 14158 issubrng 14615 issubrg 14637 zrhval 15060 asclfval 15129 psmetdmdm 15567 psmetf 15568 psmet0 15570 psmettri2 15571 psmetres2 15576 plybss 15976 edgval 16523 wlkmex 16782 wlkreslem 16841 trlsv 16847 isclwwlk 16857 clwwlkbp 16858 clwwlknonmpo 16891 eupthv 16909 trlsegvdegfi 16930 eupth2lem3lem1fi 16931 eupth2lem3lem2fi 16932 eupth2lem3lem6fi 16934 eupth2lem3lem4fi 16936 |
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