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| Mirrors > Home > MPE Home > Th. List > Mathboxes > bj-dfmpt2a | Structured version Visualization version Unicode version | ||
| Description: An equivalent definition of df-mpt2 6655. (Contributed by BJ, 30-Dec-2020.) |
| Ref | Expression |
|---|---|
| bj-dfmpt2a |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-mpt2 6655 |
. 2
| |
| 2 | dfoprab2 6701 |
. 2
| |
| 3 | ancom 466 |
. . . . . . . . 9
| |
| 4 | 3 | anbi2i 730 |
. . . . . . . 8
|
| 5 | anass 681 |
. . . . . . . 8
| |
| 6 | an13 840 |
. . . . . . . 8
| |
| 7 | 4, 5, 6 | 3bitr2i 288 |
. . . . . . 7
|
| 8 | 7 | exbii 1774 |
. . . . . 6
|
| 9 | df-rex 2918 |
. . . . . 6
| |
| 10 | r19.42v 3092 |
. . . . . 6
| |
| 11 | 8, 9, 10 | 3bitr2i 288 |
. . . . 5
|
| 12 | 11 | exbii 1774 |
. . . 4
|
| 13 | df-rex 2918 |
. . . 4
| |
| 14 | 12, 13 | bitr4i 267 |
. . 3
|
| 15 | 14 | opabbii 4717 |
. 2
|
| 16 | 1, 2, 15 | 3eqtri 2648 |
1
|
| Colors of variables: wff setvar class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-sep 4781 ax-nul 4789 ax-pr 4906 |
| This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-rex 2918 df-rab 2921 df-v 3202 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-sn 4178 df-pr 4180 df-op 4184 df-opab 4713 df-oprab 6654 df-mpt2 6655 |
| This theorem is referenced by: bj-mpt2mptALT 33072 |
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