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Mirrors > Home > ILE Home > Th. List > reu3 | Unicode version |
Description: A way to express restricted uniqueness. (Contributed by NM, 24-Oct-2006.) |
Ref | Expression |
---|---|
reu3 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | reurex 2567 | . . 3 | |
2 | reu6 2781 | . . . 4 | |
3 | bi1 116 | . . . . . 6 | |
4 | 3 | ralimi 2426 | . . . . 5 |
5 | 4 | reximi 2458 | . . . 4 |
6 | 2, 5 | sylbi 119 | . . 3 |
7 | 1, 6 | jca 300 | . 2 |
8 | rexex 2410 | . . . 4 | |
9 | 8 | anim2i 334 | . . 3 |
10 | nfv 1461 | . . . . 5 | |
11 | 10 | eu3 1987 | . . . 4 |
12 | df-reu 2355 | . . . 4 | |
13 | df-rex 2354 | . . . . 5 | |
14 | df-ral 2353 | . . . . . . 7 | |
15 | impexp 259 | . . . . . . . 8 | |
16 | 15 | albii 1399 | . . . . . . 7 |
17 | 14, 16 | bitr4i 185 | . . . . . 6 |
18 | 17 | exbii 1536 | . . . . 5 |
19 | 13, 18 | anbi12i 447 | . . . 4 |
20 | 11, 12, 19 | 3bitr4i 210 | . . 3 |
21 | 9, 20 | sylibr 132 | . 2 |
22 | 7, 21 | impbii 124 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 102 wb 103 wal 1282 wex 1421 wcel 1433 weu 1941 wral 2348 wrex 2349 wreu 2350 |
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-nf 1390 df-sb 1686 df-eu 1944 df-mo 1945 df-cleq 2074 df-clel 2077 df-ral 2353 df-rex 2354 df-reu 2355 df-rmo 2356 |
This theorem is referenced by: reu7 2787 bdreu 10646 |
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