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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 11305 addcn2 11872 mulcn2 11874 sgrp1 13496 ismhm 13546 mhmex 13547 issubm 13557 isnsg 13791 nmznsg 13802 isghm 13832 iscmn 13882 ring1 14075 opprsubrngg 14228 issubrg3 14264 islmod 14308 lmodlema 14309 lsssetm 14373 islssmd 14376 islidlm 14496 ispsmet 15050 ismet 15071 isxmet 15072 addcncntoplem 15288 elcncf 15300 mpodvdsmulf1o 15717 |
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