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| Mirrors > Home > ILE Home > Th. List > cnvuni | Unicode version | ||
| Description: The converse of a class union is the (indexed) union of the converses of its members. (Contributed by NM, 11-Aug-2004.) |
| Ref | Expression |
|---|---|
| cnvuni |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elcnv2 4857 |
. . . 4
| |
| 2 | eluni2 3854 |
. . . . . . 7
| |
| 3 | 2 | anbi2i 457 |
. . . . . 6
|
| 4 | r19.42v 2663 |
. . . . . 6
| |
| 5 | 3, 4 | bitr4i 187 |
. . . . 5
|
| 6 | 5 | 2exbii 1629 |
. . . 4
|
| 7 | elcnv2 4857 |
. . . . . 6
| |
| 8 | 7 | rexbii 2513 |
. . . . 5
|
| 9 | rexcom4 2795 |
. . . . 5
| |
| 10 | rexcom4 2795 |
. . . . . 6
| |
| 11 | 10 | exbii 1628 |
. . . . 5
|
| 12 | 8, 9, 11 | 3bitrri 207 |
. . . 4
|
| 13 | 1, 6, 12 | 3bitri 206 |
. . 3
|
| 14 | eliun 3931 |
. . 3
| |
| 15 | 13, 14 | bitr4i 187 |
. 2
|
| 16 | 15 | eqriv 2202 |
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 4163 ax-pow 4219 ax-pr 4254 |
| This theorem depends on definitions: df-bi 117 df-3an 983 df-tru 1376 df-nf 1484 df-sb 1786 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-uni 3851 df-iun 3929 df-br 4046 df-opab 4107 df-cnv 4684 |
| This theorem is referenced by: funcnvuni 5344 |
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