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Mirrors > Home > ILE Home > Th. List > epel | GIF version |
Description: The epsilon relation and the membership relation are the same. (Contributed by NM, 13-Aug-1995.) |
Ref | Expression |
---|---|
epel | ⊢ (𝑥 E 𝑦 ↔ 𝑥 ∈ 𝑦) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | vex 2729 | . 2 ⊢ 𝑦 ∈ V | |
2 | 1 | epelc 4269 | 1 ⊢ (𝑥 E 𝑦 ↔ 𝑥 ∈ 𝑦) |
Colors of variables: wff set class |
Syntax hints: ↔ wb 104 class class class wbr 3982 E cep 4265 |
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 699 ax-5 1435 ax-7 1436 ax-gen 1437 ax-ie1 1481 ax-ie2 1482 ax-8 1492 ax-10 1493 ax-11 1494 ax-i12 1495 ax-bndl 1497 ax-4 1498 ax-17 1514 ax-i9 1518 ax-ial 1522 ax-i5r 1523 ax-14 2139 ax-ext 2147 ax-sep 4100 ax-pow 4153 ax-pr 4187 |
This theorem depends on definitions: df-bi 116 df-3an 970 df-tru 1346 df-nf 1449 df-sb 1751 df-eu 2017 df-mo 2018 df-clab 2152 df-cleq 2158 df-clel 2161 df-nfc 2297 df-v 2728 df-un 3120 df-in 3122 df-ss 3129 df-pw 3561 df-sn 3582 df-pr 3583 df-op 3585 df-br 3983 df-opab 4044 df-eprel 4267 |
This theorem is referenced by: epse 4320 wetrep 4338 ordsoexmid 4539 zfregfr 4551 ordwe 4553 wessep 4555 reg3exmidlemwe 4556 smoiso 6270 nnwetri 6881 ordiso2 7000 frec2uzisod 10342 nnti 13874 |
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