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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 |
| This proof depends on syntax axioms: → wi 4 ↔ wb 105 ∀wral 2528 |
| This proof depends on 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 proof depends on definitions: df-bi 117 df-nf 1514 df-ral 2533 |
| This theorem is used by: cbvral3v 2801 poeq1 4446 soeq1 4462 isoeq1 6010 isoeq2 6011 isoeq3 6012 fnmpoovd 6455 smoeq 6566 xpf1o 7150 papeq1 7615 papcotr 7619 tapeq1 7624 elinp 7847 cauappcvgpr 8035 seq3caopr2 10950 seqcaopr2g 10951 wrd2ind 11516 addcn2 12100 mulcn2 12102 sgrp1 13784 ismhm 13826 mhmex 13827 issubm 13837 isnsg 14063 nmznsg 14074 isghm 14104 iscmn 14185 ring1 14470 opprsubrngg 14627 issubrg3 14663 islmod 14735 lmodlema 14736 lsssetm 14801 islssmd 14804 islidlm 14924 ispsmet 15566 ismet 15587 isxmet 15588 addcncntoplem 15804 elcncf 15816 mpodvdsmulf1o 16301 |
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