| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > opabid2 | Unicode version | ||
| Description: A relation expressed as an ordered pair abstraction. (Contributed by NM, 11-Dec-2006.) |
| Ref | Expression |
|---|---|
| opabid2 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | vex 2775 |
. . . 4
| |
| 2 | vex 2775 |
. . . 4
| |
| 3 | opeq1 3819 |
. . . . 5
| |
| 4 | 3 | eleq1d 2274 |
. . . 4
|
| 5 | opeq2 3820 |
. . . . 5
| |
| 6 | 5 | eleq1d 2274 |
. . . 4
|
| 7 | 1, 2, 4, 6 | opelopab 4318 |
. . 3
|
| 8 | 7 | gen2 1473 |
. 2
|
| 9 | relopab 4804 |
. . 3
| |
| 10 | eqrel 4764 |
. . 3
| |
| 11 | 9, 10 | mpan 424 |
. 2
|
| 12 | 8, 11 | mpbiri 168 |
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-io 711 ax-5 1470 ax-7 1471 ax-gen 1472 ax-ie1 1516 ax-ie2 1517 ax-8 1527 ax-10 1528 ax-11 1529 ax-i12 1530 ax-bndl 1532 ax-4 1533 ax-17 1549 ax-i9 1553 ax-ial 1557 ax-i5r 1558 ax-14 2179 ax-ext 2187 ax-sep 4162 ax-pow 4218 ax-pr 4253 |
| This theorem depends on definitions: df-bi 117 df-3an 983 df-tru 1376 df-nf 1484 df-sb 1786 df-eu 2057 df-mo 2058 df-clab 2192 df-cleq 2198 df-clel 2201 df-nfc 2337 df-ral 2489 df-rex 2490 df-v 2774 df-un 3170 df-in 3172 df-ss 3179 df-pw 3618 df-sn 3639 df-pr 3640 df-op 3642 df-opab 4106 df-xp 4681 df-rel 4682 |
| This theorem is referenced by: opabbi2dv 4827 |
| Copyright terms: Public domain | W3C validator |