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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 2544 | . 2 ⊢ (𝜑 → (∀𝑦 ∈ 𝐵 𝜓 ↔ ∀𝑦 ∈ 𝐵 𝜒)) |
| 3 | 2 | ralbidv 2544 | 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 2522 |
| 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 2527 |
| This theorem is referenced by: cbvral3v 2795 poeq1 4425 soeq1 4441 isoeq1 5980 isoeq2 5981 isoeq3 5982 fnmpoovd 6424 smoeq 6534 xpf1o 7110 papeq1 7573 papcotr 7577 tapeq1 7582 elinp 7805 cauappcvgpr 7993 seq3caopr2 10879 seqcaopr2g 10880 wrd2ind 11440 addcn2 12020 mulcn2 12022 sgrp1 13674 ismhm 13716 mhmex 13717 issubm 13727 isnsg 13955 nmznsg 13966 isghm 13996 iscmn 14046 ring1 14302 opprsubrngg 14457 issubrg3 14493 islmod 14565 lmodlema 14566 lsssetm 14630 islssmd 14633 islidlm 14753 ispsmet 15314 ismet 15335 isxmet 15336 addcncntoplem 15552 elcncf 15564 mpodvdsmulf1o 15984 |
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