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Mirrors > Home > ILE Home > Th. List > 2optocl | Unicode version |
Description: Implicit substitution of classes for ordered pairs. (Contributed by NM, 12-Mar-1995.) |
Ref | Expression |
---|---|
2optocl.1 | |
2optocl.2 | |
2optocl.3 | |
2optocl.4 |
Ref | Expression |
---|---|
2optocl |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 2optocl.1 | . . 3 | |
2 | 2optocl.3 | . . . 4 | |
3 | 2 | imbi2d 228 | . . 3 |
4 | 2optocl.2 | . . . . . 6 | |
5 | 4 | imbi2d 228 | . . . . 5 |
6 | 2optocl.4 | . . . . . 6 | |
7 | 6 | ex 113 | . . . . 5 |
8 | 1, 5, 7 | optocl 4434 | . . . 4 |
9 | 8 | com12 30 | . . 3 |
10 | 1, 3, 9 | optocl 4434 | . 2 |
11 | 10 | impcom 123 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 102 wb 103 wceq 1284 wcel 1433 cop 3401 cxp 4361 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-io 662 ax-5 1376 ax-7 1377 ax-gen 1378 ax-ie1 1422 ax-ie2 1423 ax-8 1435 ax-10 1436 ax-11 1437 ax-i12 1438 ax-bndl 1439 ax-4 1440 ax-14 1445 ax-17 1459 ax-i9 1463 ax-ial 1467 ax-i5r 1468 ax-ext 2063 ax-sep 3896 ax-pow 3948 ax-pr 3964 |
This theorem depends on definitions: df-bi 115 df-3an 921 df-tru 1287 df-nf 1390 df-sb 1686 df-clab 2068 df-cleq 2074 df-clel 2077 df-nfc 2208 df-ral 2353 df-rex 2354 df-v 2603 df-un 2977 df-in 2979 df-ss 2986 df-pw 3384 df-sn 3404 df-pr 3405 df-op 3407 df-opab 3840 df-xp 4369 |
This theorem is referenced by: 3optocl 4436 ecopovsym 6225 ecopovsymg 6228 th3qlem2 6232 axaddcom 7036 |
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