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Mirrors > Home > ILE Home > Th. List > euxfr2dc | Unicode version |
Description: Transfer existential uniqueness from a variable to another variable contained in expression . (Contributed by NM, 14-Nov-2004.) |
Ref | Expression |
---|---|
euxfr2dc.1 | |
euxfr2dc.2 |
Ref | Expression |
---|---|
euxfr2dc | DECID |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | euxfr2dc.2 | . . . . . . 7 | |
2 | 1 | moani 2011 | . . . . . 6 |
3 | ancom 262 | . . . . . . 7 | |
4 | 3 | mobii 1978 | . . . . . 6 |
5 | 2, 4 | mpbi 143 | . . . . 5 |
6 | 5 | ax-gen 1378 | . . . 4 |
7 | excom 1594 | . . . . . 6 | |
8 | 7 | dcbii 780 | . . . . 5 DECID DECID |
9 | 2euswapdc 2032 | . . . . 5 DECID | |
10 | 8, 9 | sylbi 119 | . . . 4 DECID |
11 | 6, 10 | mpi 15 | . . 3 DECID |
12 | moeq 2767 | . . . . . . 7 | |
13 | 12 | moani 2011 | . . . . . 6 |
14 | 3 | mobii 1978 | . . . . . 6 |
15 | 13, 14 | mpbi 143 | . . . . 5 |
16 | 15 | ax-gen 1378 | . . . 4 |
17 | 2euswapdc 2032 | . . . 4 DECID | |
18 | 16, 17 | mpi 15 | . . 3 DECID |
19 | 11, 18 | impbid 127 | . 2 DECID |
20 | euxfr2dc.1 | . . . 4 | |
21 | biidd 170 | . . . 4 | |
22 | 20, 21 | ceqsexv 2638 | . . 3 |
23 | 22 | eubii 1950 | . 2 |
24 | 19, 23 | syl6bb 194 | 1 DECID |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 102 wb 103 DECID wdc 775 wal 1282 wceq 1284 wex 1421 wcel 1433 weu 1941 wmo 1942 cvv 2601 |
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-in1 576 ax-in2 577 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-dc 776 df-tru 1287 df-nf 1390 df-sb 1686 df-eu 1944 df-mo 1945 df-clab 2068 df-cleq 2074 df-clel 2077 df-v 2603 |
This theorem is referenced by: euxfrdc 2778 |
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