Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > ILE Home > Th. List > eusv2nf | Unicode version |
Description: Two ways to express single-valuedness of a class expression . (Contributed by Mario Carneiro, 18-Nov-2016.) |
Ref | Expression |
---|---|
eusv2.1 |
Ref | Expression |
---|---|
eusv2nf |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nfeu1 2010 | . . . 4 | |
2 | nfe1 1472 | . . . . . . 7 | |
3 | 2 | nfeu 2018 | . . . . . 6 |
4 | eusv2.1 | . . . . . . . . 9 | |
5 | 4 | isseti 2694 | . . . . . . . 8 |
6 | 19.8a 1569 | . . . . . . . . 9 | |
7 | 6 | ancri 322 | . . . . . . . 8 |
8 | 5, 7 | eximii 1581 | . . . . . . 7 |
9 | eupick 2078 | . . . . . . 7 | |
10 | 8, 9 | mpan2 421 | . . . . . 6 |
11 | 3, 10 | alrimi 1502 | . . . . 5 |
12 | nf3 1647 | . . . . 5 | |
13 | 11, 12 | sylibr 133 | . . . 4 |
14 | 1, 13 | alrimi 1502 | . . 3 |
15 | dfnfc2 3754 | . . . 4 | |
16 | 15, 4 | mpg 1427 | . . 3 |
17 | 14, 16 | sylibr 133 | . 2 |
18 | eusvnfb 4375 | . . . 4 | |
19 | 4, 18 | mpbiran2 925 | . . 3 |
20 | eusv2i 4376 | . . 3 | |
21 | 19, 20 | sylbir 134 | . 2 |
22 | 17, 21 | impbii 125 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wb 104 wal 1329 wceq 1331 wnf 1436 wex 1468 wcel 1480 weu 1999 wnfc 2268 cvv 2686 |
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 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 |
This theorem depends on definitions: df-bi 116 df-tru 1334 df-nf 1437 df-sb 1736 df-eu 2002 df-mo 2003 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-rex 2422 df-v 2688 df-sbc 2910 df-csb 3004 df-un 3075 df-sn 3533 df-pr 3534 df-uni 3737 |
This theorem is referenced by: eusv2 4378 |
Copyright terms: Public domain | W3C validator |