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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 2533 | . 2 ⊢ (𝜑 → (∀𝑦 ∈ 𝐵 𝜓 ↔ ∀𝑦 ∈ 𝐵 𝜒)) |
| 3 | 2 | ralbidv 2533 | 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 2511 |
| 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 1496 ax-gen 1498 ax-4 1559 ax-17 1575 |
| This theorem depends on definitions: df-bi 117 df-nf 1510 df-ral 2516 |
| This theorem is referenced by: cbvral3v 2783 poeq1 4402 soeq1 4418 isoeq1 5952 isoeq2 5953 isoeq3 5954 fnmpoovd 6389 smoeq 6499 xpf1o 7073 tapeq1 7531 elinp 7754 cauappcvgpr 7942 seq3caopr2 10818 seqcaopr2g 10819 wrd2ind 11370 addcn2 11950 mulcn2 11952 sgrp1 13574 ismhm 13624 mhmex 13625 issubm 13635 isnsg 13869 nmznsg 13880 isghm 13910 iscmn 13960 ring1 14153 opprsubrngg 14306 issubrg3 14342 islmod 14387 lmodlema 14388 lsssetm 14452 islssmd 14455 islidlm 14575 ispsmet 15134 ismet 15155 isxmet 15156 addcncntoplem 15372 elcncf 15384 mpodvdsmulf1o 15804 |
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