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Mirrors > Home > ILE Home > Th. List > r3al | Unicode version |
Description: Triple restricted universal quantification. (Contributed by NM, 19-Nov-1995.) |
Ref | Expression |
---|---|
r3al |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-ral 2353 | . 2 | |
2 | r2al 2385 | . . 3 | |
3 | 2 | ralbii 2372 | . 2 |
4 | 3anass 923 | . . . . . . . . 9 | |
5 | 4 | imbi1i 236 | . . . . . . . 8 |
6 | impexp 259 | . . . . . . . 8 | |
7 | 5, 6 | bitri 182 | . . . . . . 7 |
8 | 7 | albii 1399 | . . . . . 6 |
9 | 19.21v 1794 | . . . . . 6 | |
10 | 8, 9 | bitri 182 | . . . . 5 |
11 | 10 | albii 1399 | . . . 4 |
12 | 19.21v 1794 | . . . 4 | |
13 | 11, 12 | bitri 182 | . . 3 |
14 | 13 | albii 1399 | . 2 |
15 | 1, 3, 14 | 3bitr4i 210 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 102 wb 103 w3a 919 wal 1282 wcel 1433 wral 2348 |
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-17 1459 ax-i9 1463 ax-ial 1467 ax-i5r 1468 ax-ext 2063 |
This theorem depends on definitions: df-bi 115 df-3an 921 df-tru 1287 df-nf 1390 df-sb 1686 df-cleq 2074 df-clel 2077 df-nfc 2208 df-ral 2353 |
This theorem is referenced by: pocl 4058 soss 4069 |
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