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| Mirrors > Home > ILE Home > Th. List > pwtpss | Unicode version | ||
| Description: The power set of an unordered triple. (Contributed by Jim Kingdon, 13-Aug-2018.) |
| Ref | Expression |
|---|---|
| pwtpss |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sstpr 3834 |
. . 3
| |
| 2 | elun 3345 |
. . . 4
| |
| 3 | elun 3345 |
. . . . . 6
| |
| 4 | vex 2802 |
. . . . . . . 8
| |
| 5 | 4 | elpr 3687 |
. . . . . . 7
|
| 6 | 4 | elpr 3687 |
. . . . . . 7
|
| 7 | 5, 6 | orbi12i 769 |
. . . . . 6
|
| 8 | 3, 7 | bitri 184 |
. . . . 5
|
| 9 | elun 3345 |
. . . . . 6
| |
| 10 | 4 | elpr 3687 |
. . . . . . 7
|
| 11 | 4 | elpr 3687 |
. . . . . . 7
|
| 12 | 10, 11 | orbi12i 769 |
. . . . . 6
|
| 13 | 9, 12 | bitri 184 |
. . . . 5
|
| 14 | 8, 13 | orbi12i 769 |
. . . 4
|
| 15 | 2, 14 | bitri 184 |
. . 3
|
| 16 | 4 | elpw 3655 |
. . 3
|
| 17 | 1, 15, 16 | 3imtr4i 201 |
. 2
|
| 18 | 17 | ssriv 3228 |
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-in1 617 ax-in2 618 ax-io 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-ext 2211 |
| This theorem depends on definitions: df-bi 117 df-3or 1003 df-tru 1398 df-nf 1507 df-sb 1809 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-v 2801 df-dif 3199 df-un 3201 df-in 3203 df-ss 3210 df-nul 3492 df-pw 3651 df-sn 3672 df-pr 3673 df-tp 3674 |
| This theorem is referenced by: (None) |
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