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| Mirrors > Home > ILE Home > Th. List > mpoeq123 | Unicode version | ||
| Description: An equality theorem for the maps-to notation. (Contributed by Mario Carneiro, 16-Dec-2013.) (Revised by Mario Carneiro, 19-Mar-2015.) |
| Ref | Expression |
|---|---|
| mpoeq123 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nfv 1552 |
. . . 4
| |
| 2 | nfra1 2539 |
. . . 4
| |
| 3 | 1, 2 | nfan 1589 |
. . 3
|
| 4 | nfv 1552 |
. . . 4
| |
| 5 | nfcv 2350 |
. . . . 5
| |
| 6 | nfv 1552 |
. . . . . 6
| |
| 7 | nfra1 2539 |
. . . . . 6
| |
| 8 | 6, 7 | nfan 1589 |
. . . . 5
|
| 9 | 5, 8 | nfralxy 2546 |
. . . 4
|
| 10 | 4, 9 | nfan 1589 |
. . 3
|
| 11 | nfv 1552 |
. . 3
| |
| 12 | rsp 2555 |
. . . . . . 7
| |
| 13 | rsp 2555 |
. . . . . . . . . 10
| |
| 14 | eqeq2 2217 |
. . . . . . . . . 10
| |
| 15 | 13, 14 | syl6 33 |
. . . . . . . . 9
|
| 16 | 15 | pm5.32d 450 |
. . . . . . . 8
|
| 17 | eleq2 2271 |
. . . . . . . . 9
| |
| 18 | 17 | anbi1d 465 |
. . . . . . . 8
|
| 19 | 16, 18 | sylan9bbr 463 |
. . . . . . 7
|
| 20 | 12, 19 | syl6 33 |
. . . . . 6
|
| 21 | 20 | pm5.32d 450 |
. . . . 5
|
| 22 | eleq2 2271 |
. . . . . 6
| |
| 23 | 22 | anbi1d 465 |
. . . . 5
|
| 24 | 21, 23 | sylan9bbr 463 |
. . . 4
|
| 25 | anass 401 |
. . . 4
| |
| 26 | anass 401 |
. . . 4
| |
| 27 | 24, 25, 26 | 3bitr4g 223 |
. . 3
|
| 28 | 3, 10, 11, 27 | oprabbid 6021 |
. 2
|
| 29 | df-mpo 5972 |
. 2
| |
| 30 | df-mpo 5972 |
. 2
| |
| 31 | 28, 29, 30 | 3eqtr4g 2265 |
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-5 1471 ax-7 1472 ax-gen 1473 ax-ie1 1517 ax-ie2 1518 ax-8 1528 ax-11 1530 ax-4 1534 ax-17 1550 ax-i9 1554 ax-ial 1558 ax-i5r 1559 ax-ext 2189 |
| This theorem depends on definitions: df-bi 117 df-tru 1376 df-nf 1485 df-sb 1787 df-clab 2194 df-cleq 2200 df-clel 2203 df-nfc 2339 df-ral 2491 df-oprab 5971 df-mpo 5972 |
| This theorem is referenced by: mpoeq12 6028 mapxpen 6970 |
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