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| Mirrors > Home > ILE Home > Th. List > nvel | GIF version | ||
| Description: The universal class does not belong to any class. (Contributed by FL, 31-Dec-2006.) |
| Ref | Expression |
|---|---|
| nvel | ⊢ ¬ V ∈ 𝐴 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | vprc 4180 | . 2 ⊢ ¬ V ∈ V | |
| 2 | elex 2784 | . 2 ⊢ (V ∈ 𝐴 → V ∈ V) | |
| 3 | 1, 2 | mto 664 | 1 ⊢ ¬ V ∈ 𝐴 |
| Colors of variables: wff set class |
| Syntax hints: ¬ wn 3 ∈ wcel 2177 Vcvv 2773 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 615 ax-in2 616 ax-5 1471 ax-gen 1473 ax-ie1 1517 ax-ie2 1518 ax-8 1528 ax-4 1534 ax-17 1550 ax-i9 1554 ax-ial 1558 ax-13 2179 ax-14 2180 ax-ext 2188 ax-sep 4166 |
| This theorem depends on definitions: df-bi 117 df-tru 1376 df-fal 1379 df-nf 1485 df-sb 1787 df-clab 2193 df-cleq 2199 df-clel 2202 df-v 2775 |
| This theorem is referenced by: (None) |
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