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| 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 3645 | . . . 4 ⊢ (𝑥 ∈ {𝑦 ∈ 𝐴 ∣ 𝜑} ↔ (𝑥 ∈ 𝐴 ∧ 𝜓)) |
| 3 | 2 | imbi1i 352 | . . 3 ⊢ ((𝑥 ∈ {𝑦 ∈ 𝐴 ∣ 𝜑} → 𝜒) ↔ ((𝑥 ∈ 𝐴 ∧ 𝜓) → 𝜒)) |
| 4 | impexp 456 | . . 3 ⊢ (((𝑥 ∈ 𝐴 ∧ 𝜓) → 𝜒) ↔ (𝑥 ∈ 𝐴 → (𝜓 → 𝜒))) | |
| 5 | 3, 4 | bitri 278 | . 2 ⊢ ((𝑥 ∈ {𝑦 ∈ 𝐴 ∣ 𝜑} → 𝜒) ↔ (𝑥 ∈ 𝐴 → (𝜓 → 𝜒))) |
| 6 | 5 | ralbii2 3104 | 1 ⊢ (∀𝑥 ∈ {𝑦 ∈ 𝐴 ∣ 𝜑}𝜒 ↔ ∀𝑥 ∈ 𝐴 (𝜓 → 𝜒)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∧ wa 401 ∈ wcel 2145 ∀wral 3076 {crab 3412 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-ext 2732 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1573 df-ex 1813 df-sb 2100 df-clab 2739 df-cleq 2752 df-clel 2835 df-ral 3077 df-rab 3413 df-v 3452 |
| This theorem is used by: frminex 5634 wereu2 5652 frpomin 6338 weniso 7358 zmin 12994 prmreclem1 17009 lublecllem 18447 mgmhmeql 18819 mhmeql 18936 ghmeql 19367 pgpfac1lem5 20209 lmhmeql 21240 rspprop 21434 islindf4 22052 1stcfb 23671 fbssfi 24064 filssufilg 24138 txflf 24233 ptcmplem3 24281 symgtgp 24333 tgpconncompeqg 24339 cnllycmp 25185 ovolgelb 25709 dyadmax 25827 lhop1 26242 radcnvlt1 26655 noextenddif 27905 conway 28045 madebdaylemlrcut 28165 oncutlt 28530 oniso 28537 bdayons 28542 bdayn0p1 28635 poimirlem4 38374 poimirlem32 38402 ismblfin 38411 igenval2 38817 glbconN 40251 nadd2rabtr 44226 isubgruhgr 48785 intubeu 49911 unilbeu 49912 |
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