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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 2550 | . 2 ⊢ (𝜑 → (∀𝑦 ∈ 𝐵 𝜓 ↔ ∀𝑦 ∈ 𝐵 𝜒)) |
| 3 | 2 | ralbidv 2550 | 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 2528 |
| 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 1500 ax-gen 1502 ax-4 1563 ax-17 1579 |
| This theorem depends on definitions: df-bi 117 df-nf 1514 df-ral 2533 |
| This theorem is referenced by: cbvral3v 2801 poeq1 4439 soeq1 4455 isoeq1 5997 isoeq2 5998 isoeq3 5999 fnmpoovd 6441 smoeq 6551 xpf1o 7134 papeq1 7599 papcotr 7603 tapeq1 7608 elinp 7831 cauappcvgpr 8019 seq3caopr2 10908 seqcaopr2g 10909 wrd2ind 11473 addcn2 12054 mulcn2 12056 sgrp1 13703 ismhm 13745 mhmex 13746 issubm 13756 isnsg 13982 nmznsg 13993 isghm 14023 iscmn 14073 ring1 14337 opprsubrngg 14492 issubrg3 14528 islmod 14600 lmodlema 14601 lsssetm 14665 islssmd 14668 islidlm 14788 ispsmet 15347 ismet 15368 isxmet 15369 addcncntoplem 15585 elcncf 15597 mpodvdsmulf1o 16018 |
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