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Mirrors > Home > ILE Home > Th. List > mpo2eqb | Unicode version |
Description: Bidirectional equality theorem for a mapping abstraction. Equivalent to eqfnov2 5960. (Contributed by Mario Carneiro, 4-Jan-2017.) |
Ref | Expression |
---|---|
mpo2eqb |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-mpo 5858 | . . . 4 | |
2 | df-mpo 5858 | . . . 4 | |
3 | 1, 2 | eqeq12i 2184 | . . 3 |
4 | eqoprab2b 5911 | . . 3 | |
5 | pm5.32 450 | . . . . . . 7 | |
6 | 5 | albii 1463 | . . . . . 6 |
7 | 19.21v 1866 | . . . . . 6 | |
8 | 6, 7 | bitr3i 185 | . . . . 5 |
9 | 8 | 2albii 1464 | . . . 4 |
10 | r2al 2489 | . . . 4 | |
11 | 9, 10 | bitr4i 186 | . . 3 |
12 | 3, 4, 11 | 3bitri 205 | . 2 |
13 | pm13.183 2868 | . . . . . 6 | |
14 | 13 | ralimi 2533 | . . . . 5 |
15 | ralbi 2602 | . . . . 5 | |
16 | 14, 15 | syl 14 | . . . 4 |
17 | 16 | ralimi 2533 | . . 3 |
18 | ralbi 2602 | . . 3 | |
19 | 17, 18 | syl 14 | . 2 |
20 | 12, 19 | bitr4id 198 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wb 104 wal 1346 wceq 1348 wcel 2141 wral 2448 coprab 5854 cmpo 5855 |
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-in1 609 ax-in2 610 ax-io 704 ax-5 1440 ax-7 1441 ax-gen 1442 ax-ie1 1486 ax-ie2 1487 ax-8 1497 ax-10 1498 ax-11 1499 ax-i12 1500 ax-bndl 1502 ax-4 1503 ax-17 1519 ax-i9 1523 ax-ial 1527 ax-i5r 1528 ax-14 2144 ax-ext 2152 ax-sep 4107 ax-pow 4160 ax-pr 4194 ax-setind 4521 |
This theorem depends on definitions: df-bi 116 df-3an 975 df-tru 1351 df-fal 1354 df-nf 1454 df-sb 1756 df-eu 2022 df-mo 2023 df-clab 2157 df-cleq 2163 df-clel 2166 df-nfc 2301 df-ne 2341 df-ral 2453 df-v 2732 df-dif 3123 df-un 3125 df-in 3127 df-ss 3134 df-pw 3568 df-sn 3589 df-pr 3590 df-op 3592 df-oprab 5857 df-mpo 5858 |
This theorem is referenced by: (None) |
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