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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 3454 | . 2 ⊢ 𝑥 ∈ V | |
| 2 | 1 | rgenw 3049 | 1 ⊢ ∀𝑥 ∈ 𝒫 𝑥𝑥 ∈ V |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2109 ∀wral 3045 Vcvv 3450 𝒫 cpw 4566 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-ext 2702 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-tru 1543 df-ex 1780 df-sb 2066 df-clab 2709 df-cleq 2722 df-clel 2804 df-ral 3046 df-v 3452 |
| This theorem is referenced by: (None) |
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