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Mirrors > Home > ILE Home > Th. List > eldifpw | Unicode version |
Description: Membership in a power class difference. (Contributed by NM, 25-Mar-2007.) |
Ref | Expression |
---|---|
eldifpw.1 |
Ref | Expression |
---|---|
eldifpw |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elpwi 3391 | . . . 4 | |
2 | unss1 3141 | . . . . 5 | |
3 | eldifpw.1 | . . . . . . 7 | |
4 | unexg 4196 | . . . . . . 7 | |
5 | 3, 4 | mpan2 415 | . . . . . 6 |
6 | elpwg 3390 | . . . . . 6 | |
7 | 5, 6 | syl 14 | . . . . 5 |
8 | 2, 7 | syl5ibr 154 | . . . 4 |
9 | 1, 8 | mpd 13 | . . 3 |
10 | elpwi 3391 | . . . . 5 | |
11 | 10 | unssbd 3150 | . . . 4 |
12 | 11 | con3i 594 | . . 3 |
13 | 9, 12 | anim12i 331 | . 2 |
14 | eldif 2982 | . 2 | |
15 | 13, 14 | sylibr 132 | 1 |
Colors of variables: wff set class |
Syntax hints: wn 3 wi 4 wa 102 wb 103 wcel 1433 cvv 2601 cdif 2970 cun 2971 wss 2973 cpw 3382 |
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-13 1444 ax-14 1445 ax-17 1459 ax-i9 1463 ax-ial 1467 ax-i5r 1468 ax-ext 2063 ax-sep 3896 ax-pr 3964 ax-un 4188 |
This theorem depends on definitions: df-bi 115 df-tru 1287 df-nf 1390 df-sb 1686 df-clab 2068 df-cleq 2074 df-clel 2077 df-nfc 2208 df-rex 2354 df-v 2603 df-dif 2975 df-un 2977 df-in 2979 df-ss 2986 df-pw 3384 df-sn 3404 df-pr 3405 df-uni 3602 |
This theorem is referenced by: (None) |
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