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Mirrors > Home > ILE Home > Th. List > eldifsn | Unicode version |
Description: Membership in a set with an element removed. (Contributed by NM, 10-Oct-2007.) |
Ref | Expression |
---|---|
eldifsn |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eldif 3085 |
. 2
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2 | elsng 3547 |
. . . 4
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3 | 2 | necon3bbid 2349 |
. . 3
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4 | 3 | pm5.32i 450 |
. 2
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5 | 1, 4 | bitri 183 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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-in1 604 ax-in2 605 ax-io 699 ax-5 1424 ax-7 1425 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-8 1483 ax-10 1484 ax-11 1485 ax-i12 1486 ax-bndl 1487 ax-4 1488 ax-17 1507 ax-i9 1511 ax-ial 1515 ax-i5r 1516 ax-ext 2122 |
This theorem depends on definitions: df-bi 116 df-tru 1335 df-nf 1438 df-sb 1737 df-clab 2127 df-cleq 2133 df-clel 2136 df-nfc 2271 df-ne 2310 df-v 2691 df-dif 3078 df-sn 3538 |
This theorem is referenced by: eldifsni 3660 rexdifsn 3663 difsn 3665 fnniniseg2 5551 rexsupp 5552 mpodifsnif 5872 suppssfv 5986 suppssov1 5987 dif1o 6343 fidifsnen 6772 en2eleq 7068 en2other2 7069 elni 7140 divvalap 8458 elnnne0 9015 divfnzn 9440 modfzo0difsn 10199 modsumfzodifsn 10200 hashdifpr 10598 eff2 11423 tanvalap 11451 fzo0dvdseq 11591 oddprmgt2 11850 setsslnid 12049 rplogbval 13070 |
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