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Mirrors > Home > ILE Home > Th. List > mpt2eq123dva | Unicode version |
Description: An equality deduction for the maps to notation. (Contributed by Mario Carneiro, 26-Jan-2017.) |
Ref | Expression |
---|---|
mpt2eq123dv.1 | |
mpt2eq123dva.2 | |
mpt2eq123dva.3 |
Ref | Expression |
---|---|
mpt2eq123dva |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | mpt2eq123dva.3 | . . . . . 6 | |
2 | 1 | eqeq2d 2051 | . . . . 5 |
3 | 2 | pm5.32da 425 | . . . 4 |
4 | mpt2eq123dva.2 | . . . . . . . 8 | |
5 | 4 | eleq2d 2107 | . . . . . . 7 |
6 | 5 | pm5.32da 425 | . . . . . 6 |
7 | mpt2eq123dv.1 | . . . . . . . 8 | |
8 | 7 | eleq2d 2107 | . . . . . . 7 |
9 | 8 | anbi1d 438 | . . . . . 6 |
10 | 6, 9 | bitrd 177 | . . . . 5 |
11 | 10 | anbi1d 438 | . . . 4 |
12 | 3, 11 | bitrd 177 | . . 3 |
13 | 12 | oprabbidv 5559 | . 2 |
14 | df-mpt2 5517 | . 2 | |
15 | df-mpt2 5517 | . 2 | |
16 | 13, 14, 15 | 3eqtr4g 2097 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 97 wceq 1243 wcel 1393 coprab 5513 cmpt2 5514 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 99 ax-ia2 100 ax-ia3 101 ax-5 1336 ax-7 1337 ax-gen 1338 ax-ie1 1382 ax-ie2 1383 ax-8 1395 ax-11 1397 ax-4 1400 ax-17 1419 ax-i9 1423 ax-ial 1427 ax-i5r 1428 ax-ext 2022 |
This theorem depends on definitions: df-bi 110 df-tru 1246 df-nf 1350 df-sb 1646 df-clab 2027 df-cleq 2033 df-clel 2036 df-oprab 5516 df-mpt2 5517 |
This theorem is referenced by: mpt2eq123dv 5567 |
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