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 1508 | . . . 4 | |
2 | nfra1 2466 | . . . 4 | |
3 | 1, 2 | nfan 1544 | . . 3 |
4 | nfv 1508 | . . . 4 | |
5 | nfcv 2281 | . . . . 5 | |
6 | nfv 1508 | . . . . . 6 | |
7 | nfra1 2466 | . . . . . 6 | |
8 | 6, 7 | nfan 1544 | . . . . 5 |
9 | 5, 8 | nfralxy 2471 | . . . 4 |
10 | 4, 9 | nfan 1544 | . . 3 |
11 | nfv 1508 | . . 3 | |
12 | rsp 2480 | . . . . . . 7 | |
13 | rsp 2480 | . . . . . . . . . 10 | |
14 | eqeq2 2149 | . . . . . . . . . 10 | |
15 | 13, 14 | syl6 33 | . . . . . . . . 9 |
16 | 15 | pm5.32d 445 | . . . . . . . 8 |
17 | eleq2 2203 | . . . . . . . . 9 | |
18 | 17 | anbi1d 460 | . . . . . . . 8 |
19 | 16, 18 | sylan9bbr 458 | . . . . . . 7 |
20 | 12, 19 | syl6 33 | . . . . . 6 |
21 | 20 | pm5.32d 445 | . . . . 5 |
22 | eleq2 2203 | . . . . . 6 | |
23 | 22 | anbi1d 460 | . . . . 5 |
24 | 21, 23 | sylan9bbr 458 | . . . 4 |
25 | anass 398 | . . . 4 | |
26 | anass 398 | . . . 4 | |
27 | 24, 25, 26 | 3bitr4g 222 | . . 3 |
28 | 3, 10, 11, 27 | oprabbid 5824 | . 2 |
29 | df-mpo 5779 | . 2 | |
30 | df-mpo 5779 | . 2 | |
31 | 28, 29, 30 | 3eqtr4g 2197 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wb 104 wceq 1331 wcel 1480 wral 2416 coprab 5775 cmpo 5776 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-11 1484 ax-4 1487 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 |
This theorem depends on definitions: df-bi 116 df-tru 1334 df-nf 1437 df-sb 1736 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-ral 2421 df-oprab 5778 df-mpo 5779 |
This theorem is referenced by: mpoeq12 5831 mapxpen 6742 |
Copyright terms: Public domain | W3C validator |