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Mirrors > Home > ILE Home > Th. List > cbvopab | Unicode version |
Description: Rule used to change bound variables in an ordered-pair class abstraction, using implicit substitution. (Contributed by NM, 14-Sep-2003.) |
Ref | Expression |
---|---|
cbvopab.1 | |
cbvopab.2 | |
cbvopab.3 | |
cbvopab.4 | |
cbvopab.5 |
Ref | Expression |
---|---|
cbvopab |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nfv 1515 | . . . . 5 | |
2 | cbvopab.1 | . . . . 5 | |
3 | 1, 2 | nfan 1552 | . . . 4 |
4 | nfv 1515 | . . . . 5 | |
5 | cbvopab.2 | . . . . 5 | |
6 | 4, 5 | nfan 1552 | . . . 4 |
7 | nfv 1515 | . . . . 5 | |
8 | cbvopab.3 | . . . . 5 | |
9 | 7, 8 | nfan 1552 | . . . 4 |
10 | nfv 1515 | . . . . 5 | |
11 | cbvopab.4 | . . . . 5 | |
12 | 10, 11 | nfan 1552 | . . . 4 |
13 | opeq12 3755 | . . . . . 6 | |
14 | 13 | eqeq2d 2176 | . . . . 5 |
15 | cbvopab.5 | . . . . 5 | |
16 | 14, 15 | anbi12d 465 | . . . 4 |
17 | 3, 6, 9, 12, 16 | cbvex2 1909 | . . 3 |
18 | 17 | abbii 2280 | . 2 |
19 | df-opab 4039 | . 2 | |
20 | df-opab 4039 | . 2 | |
21 | 18, 19, 20 | 3eqtr4i 2195 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wb 104 wceq 1342 wnf 1447 wex 1479 cab 2150 cop 3574 copab 4037 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 699 ax-5 1434 ax-7 1435 ax-gen 1436 ax-ie1 1480 ax-ie2 1481 ax-8 1491 ax-10 1492 ax-11 1493 ax-i12 1494 ax-bndl 1496 ax-4 1497 ax-17 1513 ax-i9 1517 ax-ial 1521 ax-i5r 1522 ax-ext 2146 |
This theorem depends on definitions: df-bi 116 df-3an 969 df-tru 1345 df-nf 1448 df-sb 1750 df-clab 2151 df-cleq 2157 df-clel 2160 df-nfc 2295 df-v 2724 df-un 3116 df-sn 3577 df-pr 3578 df-op 3580 df-opab 4039 |
This theorem is referenced by: cbvopabv 4049 opelopabsb 4233 |
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