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| Mirrors > Home > MPE Home > Th. List > Mathboxes > ralndv2 | Structured version Visualization version GIF version | ||
| Description: Second example for a theorem about a restricted universal quantification in which the restricting class depends on the bound variable: all subsets of a set are sets. (Contributed by AV, 24-Jun-2023.) |
| Ref | Expression |
|---|---|
| ralndv2 | ⊢ ∀𝑥 ∈ 𝒫 𝑥𝑥 ∈ V |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | vex 3467 | . 2 ⊢ 𝑥 ∈ V | |
| 2 | 1 | rgenw 3054 | 1 ⊢ ∀𝑥 ∈ 𝒫 𝑥𝑥 ∈ V |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2107 ∀wral 3050 Vcvv 3463 𝒫 cpw 4580 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1794 ax-4 1808 ax-5 1909 ax-6 1966 ax-7 2006 ax-8 2109 ax-9 2117 ax-ext 2706 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-tru 1542 df-ex 1779 df-sb 2064 df-clab 2713 df-cleq 2726 df-clel 2808 df-ral 3051 df-v 3465 |
| This theorem is referenced by: (None) |
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