Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > ILE Home > Th. List > reuss2 | Unicode version |
Description: Transfer uniqueness to a smaller subclass. (Contributed by NM, 20-Oct-2005.) |
Ref | Expression |
---|---|
reuss2 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-rex 2312 | . . 3 | |
2 | df-reu 2313 | . . 3 | |
3 | 1, 2 | anbi12i 433 | . 2 |
4 | df-ral 2311 | . . . . . . 7 | |
5 | ssel 2939 | . . . . . . . . . . . . . 14 | |
6 | prth 326 | . . . . . . . . . . . . . 14 | |
7 | 5, 6 | sylan 267 | . . . . . . . . . . . . 13 |
8 | 7 | exp4b 349 | . . . . . . . . . . . 12 |
9 | 8 | com23 72 | . . . . . . . . . . 11 |
10 | 9 | a2d 23 | . . . . . . . . . 10 |
11 | 10 | imp4a 331 | . . . . . . . . 9 |
12 | 11 | alimdv 1759 | . . . . . . . 8 |
13 | 12 | imp 115 | . . . . . . 7 |
14 | 4, 13 | sylan2b 271 | . . . . . 6 |
15 | euimmo 1967 | . . . . . 6 | |
16 | 14, 15 | syl 14 | . . . . 5 |
17 | eu5 1947 | . . . . . 6 | |
18 | 17 | simplbi2 367 | . . . . 5 |
19 | 16, 18 | syl9 66 | . . . 4 |
20 | 19 | imp32 244 | . . 3 |
21 | df-reu 2313 | . . 3 | |
22 | 20, 21 | sylibr 137 | . 2 |
23 | 3, 22 | sylan2b 271 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 97 wal 1241 wex 1381 wcel 1393 weu 1900 wmo 1901 wral 2306 wrex 2307 wreu 2308 wss 2917 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 99 ax-ia2 100 ax-ia3 101 ax-io 630 ax-5 1336 ax-7 1337 ax-gen 1338 ax-ie1 1382 ax-ie2 1383 ax-8 1395 ax-10 1396 ax-11 1397 ax-i12 1398 ax-bndl 1399 ax-4 1400 ax-17 1419 ax-i9 1423 ax-ial 1427 ax-i5r 1428 ax-ext 2022 |
This theorem depends on definitions: df-bi 110 df-nf 1350 df-sb 1646 df-eu 1903 df-mo 1904 df-clab 2027 df-cleq 2033 df-clel 2036 df-ral 2311 df-rex 2312 df-reu 2313 df-in 2924 df-ss 2931 |
This theorem is referenced by: reuss 3218 reuun1 3219 riotass2 5494 |
Copyright terms: Public domain | W3C validator |