| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 6565 xpf1o 7148 papeq1 7615 papcotr 7619 tapeq1 7624 elinp 7847 cauappcvgpr 8035 seq3caopr2 10951 seqcaopr2g 10952 wrd2ind 11517 addcn2 12101 mulcn2 12103 sgrp1 13785 ismhm 13827 mhmex 13828 issubm 13838 isnsg 14064 nmznsg 14075 isghm 14105 iscmn 14186 ring1 14471 opprsubrngg 14628 issubrg3 14664 islmod 14736 lmodlema 14737 lsssetm 14802 islssmd 14805 islidlm 14925 ispsmet 15549 ismet 15570 isxmet 15571 addcncntoplem 15787 elcncf 15799 mpodvdsmulf1o 16284 |
| Copyright terms: Public domain | W3C validator |