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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 2532 | . 2 ⊢ (𝜑 → (∀𝑦 ∈ 𝐵 𝜓 ↔ ∀𝑦 ∈ 𝐵 𝜒)) |
| 3 | 2 | ralbidv 2532 | 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 2510 |
| 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 1495 ax-gen 1497 ax-4 1558 ax-17 1574 |
| This theorem depends on definitions: df-bi 117 df-nf 1509 df-ral 2515 |
| This theorem is referenced by: cbvral3v 2782 poeq1 4396 soeq1 4412 isoeq1 5942 isoeq2 5943 isoeq3 5944 fnmpoovd 6380 smoeq 6456 xpf1o 7030 tapeq1 7471 elinp 7694 cauappcvgpr 7882 seq3caopr2 10756 seqcaopr2g 10757 wrd2ind 11308 addcn2 11888 mulcn2 11890 sgrp1 13512 ismhm 13562 mhmex 13563 issubm 13573 isnsg 13807 nmznsg 13818 isghm 13848 iscmn 13898 ring1 14091 opprsubrngg 14244 issubrg3 14280 islmod 14324 lmodlema 14325 lsssetm 14389 islssmd 14392 islidlm 14512 ispsmet 15066 ismet 15087 isxmet 15088 addcncntoplem 15304 elcncf 15316 mpodvdsmulf1o 15733 |
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