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| Mirrors > Home > ILE Home > Th. List > Mathboxes > bdop | Unicode version | ||
| Description: The ordered pair of two setvars is a bounded class. (Contributed by BJ, 21-Nov-2019.) |
| Ref | Expression |
|---|---|
| bdop |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | bdvsn 16900 |
. . . 4
| |
| 2 | bdcpr 16897 |
. . . . . . 7
| |
| 3 | 2 | bdss 16890 |
. . . . . 6
|
| 4 | ax-bdel 16847 |
. . . . . . . 8
| |
| 5 | ax-bdel 16847 |
. . . . . . . 8
| |
| 6 | 4, 5 | ax-bdan 16841 |
. . . . . . 7
|
| 7 | vex 2824 |
. . . . . . . . . . 11
| |
| 8 | 7 | prid1 3817 |
. . . . . . . . . 10
|
| 9 | ssel 3242 |
. . . . . . . . . 10
| |
| 10 | 8, 9 | mpi 15 |
. . . . . . . . 9
|
| 11 | vex 2824 |
. . . . . . . . . . 11
| |
| 12 | 11 | prid2 3818 |
. . . . . . . . . 10
|
| 13 | ssel 3242 |
. . . . . . . . . 10
| |
| 14 | 12, 13 | mpi 15 |
. . . . . . . . 9
|
| 15 | 10, 14 | jca 306 |
. . . . . . . 8
|
| 16 | prssi 3873 |
. . . . . . . 8
| |
| 17 | 15, 16 | impbii 126 |
. . . . . . 7
|
| 18 | 6, 17 | bd0r 16851 |
. . . . . 6
|
| 19 | 3, 18 | ax-bdan 16841 |
. . . . 5
|
| 20 | eqss 3263 |
. . . . 5
| |
| 21 | 19, 20 | bd0r 16851 |
. . . 4
|
| 22 | 1, 21 | ax-bdor 16842 |
. . 3
|
| 23 | vex 2824 |
. . . 4
| |
| 24 | 23, 7, 11 | elop 4371 |
. . 3
|
| 25 | 22, 24 | bd0r 16851 |
. 2
|
| 26 | 25 | bdelir 16873 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 ax-bd0 16839 ax-bdan 16841 ax-bdor 16842 ax-bdal 16844 ax-bdeq 16846 ax-bdel 16847 ax-bdsb 16848 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-v 2823 df-un 3224 df-in 3226 df-ss 3233 df-sn 3715 df-pr 3716 df-op 3718 df-bdc 16867 |
| This theorem is used by: (None) |
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