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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 4269 | . 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 4251 |
| 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 4533 dmresexg 5088 funimaexg 5468 ofovex 6311 offval 6314 offval3 6371 ssenen 7156 hashfibclem 11304 ressvalsets 13476 ressex 13477 ressbasd 13480 resseqnbasd 13486 ressinbasd 13487 ressressg 13488 qusin 13706 mgpress 14337 isunitd 14522 isrhm 14574 rhmfn 14588 rhmval 14589 2idlval 14948 2idlvalg 14949 eltg 15278 eltg3 15283 ntrval 15336 restco 15400 wlk1walkdom 16805 |
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