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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 5284 |
. 2
|
| 3 | 1 | funmpt2 5416 |
. . . 4
|
| 4 | funrel 5394 |
. . . 4
| |
| 5 | 3, 4 | ax-mp 5 |
. . 3
|
| 6 | relelfvdm 5727 |
. . 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 4249 ax-pow 4311 ax-pr 4346 |
| 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 4131 df-opab 4193 df-mpt 4194 df-id 4438 df-xp 4780 df-rel 4781 df-cnv 4782 df-co 4783 df-dm 4784 df-rn 4785 df-res 4786 df-ima 4787 df-iota 5337 df-fun 5379 df-fv 5385 |
| This theorem is used by: indval0 9299 bitsval 12726 divsfval 13698 submrcl 13827 issubg 14025 isnsg 14054 issubrng 14556 issubrg 14578 zrhval 15001 asclfval 15070 psmetdmdm 15474 psmetf 15475 psmet0 15477 psmettri2 15478 psmetres2 15483 plybss 15883 edgval 16399 wlkmex 16658 wlkreslem 16717 trlsv 16723 isclwwlk 16733 clwwlkbp 16734 clwwlknonmpo 16767 eupthv 16785 trlsegvdegfi 16806 eupth2lem3lem1fi 16807 eupth2lem3lem2fi 16808 eupth2lem3lem6fi 16810 eupth2lem3lem4fi 16812 |
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