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| Mirrors > Home > ILE Home > Th. List > inex1g | GIF version | ||
| Description: Closed-form, generalized Separation Scheme. (Contributed by NM, 7-Apr-1995.) |
| Ref | Expression |
|---|---|
| inex1g | ⊢ (𝐴 ∈ 𝑉 → (𝐴 ∩ 𝐵) ∈ V) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ineq1 3425 | . . 3 ⊢ (𝑥 = 𝐴 → (𝑥 ∩ 𝐵) = (𝐴 ∩ 𝐵)) | |
| 2 | 1 | eleq1d 2307 | . 2 ⊢ (𝑥 = 𝐴 → ((𝑥 ∩ 𝐵) ∈ V ↔ (𝐴 ∩ 𝐵) ∈ V)) |
| 3 | vex 2824 | . . 3 ⊢ 𝑥 ∈ V | |
| 4 | 3 | inex1 4267 | . 2 ⊢ (𝑥 ∩ 𝐵) ∈ V |
| 5 | 2, 4 | vtoclg 2883 | 1 ⊢ (𝐴 ∈ 𝑉 → (𝐴 ∩ 𝐵) ∈ V) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 = wceq 1402 ∈ wcel 2209 Vcvv 2821 ∩ cin 3219 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 ax-sep 4249 |
| This proof depends on definitions: df-bi 117 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-v 2823 df-in 3226 |
| This theorem is used by: onin 4531 dmresexg 5086 funimaexg 5465 offval 6310 offval3 6367 ssenen 7152 hashfibclem 11298 ressvalsets 13470 ressex 13471 ressbasd 13474 resseqnbasd 13480 ressinbasd 13481 ressressg 13482 qusin 13700 mgpress 14314 isunitd 14497 isrhm 14549 rhmfn 14563 rhmval 14564 2idlval 14923 2idlvalg 14924 eltg 15244 eltg3 15249 ntrval 15302 restco 15366 wlk1walkdom 16766 |
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