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| Mirrors > Home > ILE Home > Th. List > ssrelrel | Unicode version | ||
| Description: A subclass relationship determined by ordered triples. Use relrelss 5309 to express the antecedent in terms of the relation predicate. (Contributed by NM, 17-Dec-2008.) (Proof shortened by Andrew Salmon, 27-Aug-2011.) |
| Ref | Expression |
|---|---|
| ssrelrel |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ssel 3242 |
. . . 4
| |
| 2 | 1 | alrimiv 1927 |
. . 3
|
| 3 | 2 | alrimivv 1928 |
. 2
|
| 4 | elvvv 4833 |
. . . . . . . 8
| |
| 5 | eleq1 2301 |
. . . . . . . . . . . . . 14
| |
| 6 | eleq1 2301 |
. . . . . . . . . . . . . 14
| |
| 7 | 5, 6 | imbi12d 234 |
. . . . . . . . . . . . 13
|
| 8 | 7 | biimprcd 160 |
. . . . . . . . . . . 12
|
| 9 | 8 | alimi 1508 |
. . . . . . . . . . 11
|
| 10 | 19.23v 1936 |
. . . . . . . . . . 11
| |
| 11 | 9, 10 | sylib 122 |
. . . . . . . . . 10
|
| 12 | 11 | 2alimi 1509 |
. . . . . . . . 9
|
| 13 | 19.23vv 1937 |
. . . . . . . . 9
| |
| 14 | 12, 13 | sylib 122 |
. . . . . . . 8
|
| 15 | 4, 14 | biimtrid 152 |
. . . . . . 7
|
| 16 | 15 | com23 78 |
. . . . . 6
|
| 17 | 16 | a2d 26 |
. . . . 5
|
| 18 | 17 | alimdv 1932 |
. . . 4
|
| 19 | ssalel 3235 |
. . . 4
| |
| 20 | ssalel 3235 |
. . . 4
| |
| 21 | 18, 19, 20 | 3imtr4g 205 |
. . 3
|
| 22 | 21 | com12 30 |
. 2
|
| 23 | 3, 22 | impbid2 143 |
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 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-14 2212 ax-ext 2220 ax-sep 4244 ax-pow 4306 ax-pr 4341 |
| This theorem 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-v 2823 df-un 3224 df-in 3226 df-ss 3233 df-pw 3687 df-sn 3711 df-pr 3712 df-op 3714 df-opab 4188 df-xp 4775 |
| This theorem is referenced by: eqrelrel 4871 |
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