| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 1542 |
. . . 4
| |
| 2 | nfra1 2528 |
. . . 4
| |
| 3 | 1, 2 | nfan 1579 |
. . 3
|
| 4 | nfv 1542 |
. . . 4
| |
| 5 | nfcv 2339 |
. . . . 5
| |
| 6 | nfv 1542 |
. . . . . 6
| |
| 7 | nfra1 2528 |
. . . . . 6
| |
| 8 | 6, 7 | nfan 1579 |
. . . . 5
|
| 9 | 5, 8 | nfralxy 2535 |
. . . 4
|
| 10 | 4, 9 | nfan 1579 |
. . 3
|
| 11 | nfv 1542 |
. . 3
| |
| 12 | rsp 2544 |
. . . . . . 7
| |
| 13 | rsp 2544 |
. . . . . . . . . 10
| |
| 14 | eqeq2 2206 |
. . . . . . . . . 10
| |
| 15 | 13, 14 | syl6 33 |
. . . . . . . . 9
|
| 16 | 15 | pm5.32d 450 |
. . . . . . . 8
|
| 17 | eleq2 2260 |
. . . . . . . . 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 2260 |
. . . . . 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 5975 |
. 2
|
| 29 | df-mpo 5927 |
. 2
| |
| 30 | df-mpo 5927 |
. 2
| |
| 31 | 28, 29, 30 | 3eqtr4g 2254 |
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 1461 ax-7 1462 ax-gen 1463 ax-ie1 1507 ax-ie2 1508 ax-8 1518 ax-11 1520 ax-4 1524 ax-17 1540 ax-i9 1544 ax-ial 1548 ax-i5r 1549 ax-ext 2178 |
| This theorem depends on definitions: df-bi 117 df-tru 1367 df-nf 1475 df-sb 1777 df-clab 2183 df-cleq 2189 df-clel 2192 df-nfc 2328 df-ral 2480 df-oprab 5926 df-mpo 5927 |
| This theorem is referenced by: mpoeq12 5982 mapxpen 6909 |
| Copyright terms: Public domain | W3C validator |