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| Mirrors > Home > ILE Home > Th. List > unielrel | Unicode version | ||
| Description: The membership relation for a relation is inherited by class union. (Contributed by NM, 17-Sep-2006.) |
| Ref | Expression |
|---|---|
| unielrel |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elrel 4795 |
. 2
| |
| 2 | simpr 110 |
. 2
| |
| 3 | vex 2779 |
. . . . . 6
| |
| 4 | vex 2779 |
. . . . . 6
| |
| 5 | 3, 4 | uniopel 4319 |
. . . . 5
|
| 6 | 5 | a1i 9 |
. . . 4
|
| 7 | eleq1 2270 |
. . . 4
| |
| 8 | unieq 3873 |
. . . . 5
| |
| 9 | 8 | eleq1d 2276 |
. . . 4
|
| 10 | 6, 7, 9 | 3imtr4d 203 |
. . 3
|
| 11 | 10 | exlimivv 1921 |
. 2
|
| 12 | 1, 2, 11 | sylc 62 |
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 1471 ax-7 1472 ax-gen 1473 ax-ie1 1517 ax-ie2 1518 ax-8 1528 ax-10 1529 ax-11 1530 ax-i12 1531 ax-bndl 1533 ax-4 1534 ax-17 1550 ax-i9 1554 ax-ial 1558 ax-i5r 1559 ax-14 2181 ax-ext 2189 ax-sep 4178 ax-pow 4234 ax-pr 4269 |
| This theorem depends on definitions: df-bi 117 df-3an 983 df-tru 1376 df-nf 1485 df-sb 1787 df-clab 2194 df-cleq 2200 df-clel 2203 df-nfc 2339 df-rex 2492 df-v 2778 df-un 3178 df-in 3180 df-ss 3187 df-pw 3628 df-sn 3649 df-pr 3650 df-op 3652 df-uni 3865 df-opab 4122 df-xp 4699 df-rel 4700 |
| This theorem is referenced by: (None) |
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