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| Mirrors > Home > ILE Home > Th. List > eqrelrel | Unicode version | ||
| Description: Extensionality principle for ordered triples, analogous to eqrel 4752. Use relrelss 5196 to express the antecedent in terms of the relation predicate. (Contributed by NM, 17-Dec-2008.) | 
| Ref | Expression | 
|---|---|
| eqrelrel | 
 | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | unss 3337 | 
. 2
 | |
| 2 | ssrelrel 4763 | 
. . . 4
 | |
| 3 | ssrelrel 4763 | 
. . . 4
 | |
| 4 | 2, 3 | bi2anan9 606 | 
. . 3
 | 
| 5 | eqss 3198 | 
. . 3
 | |
| 6 | 2albiim 1502 | 
. . . . 5
 | |
| 7 | 6 | albii 1484 | 
. . . 4
 | 
| 8 | 19.26 1495 | 
. . . 4
 | |
| 9 | 7, 8 | bitri 184 | 
. . 3
 | 
| 10 | 4, 5, 9 | 3bitr4g 223 | 
. 2
 | 
| 11 | 1, 10 | sylbir 135 | 
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 710 ax-5 1461 ax-7 1462 ax-gen 1463 ax-ie1 1507 ax-ie2 1508 ax-8 1518 ax-10 1519 ax-11 1520 ax-i12 1521 ax-bndl 1523 ax-4 1524 ax-17 1540 ax-i9 1544 ax-ial 1548 ax-i5r 1549 ax-14 2170 ax-ext 2178 ax-sep 4151 ax-pow 4207 ax-pr 4242 | 
| This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1475 df-sb 1777 df-clab 2183 df-cleq 2189 df-clel 2192 df-nfc 2328 df-v 2765 df-un 3161 df-in 3163 df-ss 3170 df-pw 3607 df-sn 3628 df-pr 3629 df-op 3631 df-opab 4095 df-xp 4669 | 
| This theorem is referenced by: (None) | 
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