![]() |
Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
|
Mirrors > Home > MPE Home > Th. List > ralrab | Structured version Visualization version GIF version |
Description: Universal quantification over a restricted class abstraction. (Contributed by Jeff Madsen, 10-Jun-2010.) |
Ref | Expression |
---|---|
ralab.1 | ⊢ (𝑦 = 𝑥 → (𝜑 ↔ 𝜓)) |
Ref | Expression |
---|---|
ralrab | ⊢ (∀𝑥 ∈ {𝑦 ∈ 𝐴 ∣ 𝜑}𝜒 ↔ ∀𝑥 ∈ 𝐴 (𝜓 → 𝜒)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ralab.1 | . . . . 5 ⊢ (𝑦 = 𝑥 → (𝜑 ↔ 𝜓)) | |
2 | 1 | elrab 3708 | . . . 4 ⊢ (𝑥 ∈ {𝑦 ∈ 𝐴 ∣ 𝜑} ↔ (𝑥 ∈ 𝐴 ∧ 𝜓)) |
3 | 2 | imbi1i 349 | . . 3 ⊢ ((𝑥 ∈ {𝑦 ∈ 𝐴 ∣ 𝜑} → 𝜒) ↔ ((𝑥 ∈ 𝐴 ∧ 𝜓) → 𝜒)) |
4 | impexp 450 | . . 3 ⊢ (((𝑥 ∈ 𝐴 ∧ 𝜓) → 𝜒) ↔ (𝑥 ∈ 𝐴 → (𝜓 → 𝜒))) | |
5 | 3, 4 | bitri 275 | . 2 ⊢ ((𝑥 ∈ {𝑦 ∈ 𝐴 ∣ 𝜑} → 𝜒) ↔ (𝑥 ∈ 𝐴 → (𝜓 → 𝜒))) |
6 | 5 | ralbii2 3095 | 1 ⊢ (∀𝑥 ∈ {𝑦 ∈ 𝐴 ∣ 𝜑}𝜒 ↔ ∀𝑥 ∈ 𝐴 (𝜓 → 𝜒)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 ∈ wcel 2108 ∀wral 3067 {crab 3443 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1793 ax-4 1807 ax-5 1909 ax-6 1967 ax-7 2007 ax-8 2110 ax-9 2118 ax-ext 2711 |
This theorem depends on definitions: df-bi 207 df-an 396 df-tru 1540 df-ex 1778 df-sb 2065 df-clab 2718 df-cleq 2732 df-clel 2819 df-ral 3068 df-rab 3444 df-v 3490 |
This theorem is referenced by: frminex 5679 wereu2 5697 frpomin 6372 weniso 7390 zmin 13009 prmreclem1 16963 lublecllem 18430 mgmhmeql 18754 mhmeql 18861 ghmeql 19279 pgpfac1lem5 20123 lmhmeql 21077 islindf4 21881 1stcfb 23474 fbssfi 23866 filssufilg 23940 txflf 24035 ptcmplem3 24083 symgtgp 24135 tgpconncompeqg 24141 cnllycmp 25007 ovolgelb 25534 dyadmax 25652 lhop1 26073 radcnvlt1 26479 noextenddif 27731 conway 27862 madebdaylemlrcut 27955 poimirlem4 37584 poimirlem32 37612 ismblfin 37621 igenval2 38026 glbconN 39333 glbconNOLD 39334 nadd2rabtr 43346 isubgruhgr 47738 intubeu 48656 unilbeu 48657 |
Copyright terms: Public domain | W3C validator |