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| Mirrors > Home > ILE Home > Th. List > 2ralbidv | GIF version | ||
| Description: Formula-building rule for restricted universal quantifiers (deduction form). (Contributed by NM, 28-Jan-2006.) (Revised by Szymon Jaroszewicz, 16-Mar-2007.) |
| Ref | Expression |
|---|---|
| 2ralbidv.1 | ⊢ (𝜑 → (𝜓 ↔ 𝜒)) |
| Ref | Expression |
|---|---|
| 2ralbidv | ⊢ (𝜑 → (∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝜓 ↔ ∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝜒)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 2ralbidv.1 | . . 3 ⊢ (𝜑 → (𝜓 ↔ 𝜒)) | |
| 2 | 1 | ralbidv 2530 | . 2 ⊢ (𝜑 → (∀𝑦 ∈ 𝐵 𝜓 ↔ ∀𝑦 ∈ 𝐵 𝜒)) |
| 3 | 2 | ralbidv 2530 | 1 ⊢ (𝜑 → (∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝜓 ↔ ∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝜒)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ↔ wb 105 ∀wral 2508 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1493 ax-gen 1495 ax-4 1556 ax-17 1572 |
| This theorem depends on definitions: df-bi 117 df-nf 1507 df-ral 2513 |
| This theorem is referenced by: cbvral3v 2780 poeq1 4394 soeq1 4410 isoeq1 5937 isoeq2 5938 isoeq3 5939 fnmpoovd 6375 smoeq 6451 xpf1o 7025 tapeq1 7461 elinp 7684 cauappcvgpr 7872 seq3caopr2 10745 seqcaopr2g 10746 wrd2ind 11294 addcn2 11861 mulcn2 11863 sgrp1 13484 ismhm 13534 mhmex 13535 issubm 13545 isnsg 13779 nmznsg 13790 isghm 13820 iscmn 13870 ring1 14062 opprsubrngg 14215 issubrg3 14251 islmod 14295 lmodlema 14296 lsssetm 14360 islssmd 14363 islidlm 14483 ispsmet 15037 ismet 15058 isxmet 15059 addcncntoplem 15275 elcncf 15287 mpodvdsmulf1o 15704 |
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