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| Mirrors > Home > MPE Home > Th. List > resexd | Structured version Visualization version GIF version | ||
| Description: The restriction of a set is a set. (Contributed by Glauco Siliprandi, 23-Oct-2021.) |
| Ref | Expression |
|---|---|
| resexd.1 | ⊢ (𝜑 → 𝐴 ∈ 𝑉) |
| Ref | Expression |
|---|---|
| resexd | ⊢ (𝜑 → (𝐴 ↾ 𝐵) ∈ V) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | resexd.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ 𝑉) | |
| 2 | resexg 6014 | . 2 ⊢ (𝐴 ∈ 𝑉 → (𝐴 ↾ 𝐵) ∈ V) | |
| 3 | 1, 2 | syl 18 | 1 ⊢ (𝜑 → (𝐴 ↾ 𝐵) ∈ V) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2145 Vcvv 3450 ↾ cres 5649 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-ext 2732 ax-sep 5248 |
| This proof depends on definitions: df-bi 210 df-an 402 df-3an 1105 df-tru 1573 df-ex 1813 df-sb 2100 df-clab 2739 df-cleq 2752 df-clel 2835 df-rab 3413 df-v 3452 df-in 3905 df-ss 3915 df-res 5659 |
| This theorem is used by: gsum2dlem2 20146 psrbagres 22199 tsmspropd 24412 ulmss 26687 elrgspnlem4 33739 extvfvcl 34101 esplyind 34140 lmimdim 34169 aks6d1c6lem3 43142 pwssplit4 44034 limsupresre 46628 limsupresico 46632 limsupresuz 46635 limsupres 46637 limsupresxr 46698 liminfresxr 46699 liminfresico 46703 liminfresre 46711 liminfresuz 46716 isubgriedg 48883 isubgrvtx 48887 |
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