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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 2542 | . 2 ⊢ (𝜑 → (∀𝑦 ∈ 𝐵 𝜓 ↔ ∀𝑦 ∈ 𝐵 𝜒)) |
| 3 | 2 | ralbidv 2542 | 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 2520 |
| 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 2525 |
| This theorem is referenced by: cbvral3v 2793 poeq1 4420 soeq1 4436 isoeq1 5974 isoeq2 5975 isoeq3 5976 fnmpoovd 6411 smoeq 6521 xpf1o 7097 papcotr 7562 tapeq1 7566 elinp 7789 cauappcvgpr 7977 seq3caopr2 10855 seqcaopr2g 10856 wrd2ind 11415 addcn2 11995 mulcn2 11997 sgrp1 13624 ismhm 13674 mhmex 13675 issubm 13685 isnsg 13919 nmznsg 13930 isghm 13960 iscmn 14010 ring1 14203 opprsubrngg 14356 issubrg3 14392 islmod 14439 lmodlema 14440 lsssetm 14504 islssmd 14507 islidlm 14627 ispsmet 15188 ismet 15209 isxmet 15210 addcncntoplem 15426 elcncf 15438 mpodvdsmulf1o 15858 |
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