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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 3648 | . . . 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 3080 | 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 2114 ∀wral 3052 {crab 3401 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2709 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-tru 1545 df-ex 1782 df-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 df-ral 3053 df-rab 3402 df-v 3444 |
| This theorem is referenced by: frminex 5611 wereu2 5629 frpomin 6306 weniso 7310 zmin 12869 prmreclem1 16856 lublecllem 18293 mgmhmeql 18653 mhmeql 18763 ghmeql 19180 pgpfac1lem5 20022 lmhmeql 21019 islindf4 21805 1stcfb 23401 fbssfi 23793 filssufilg 23867 txflf 23962 ptcmplem3 24010 symgtgp 24062 tgpconncompeqg 24068 cnllycmp 24923 ovolgelb 25449 dyadmax 25567 lhop1 25987 radcnvlt1 26395 noextenddif 27648 conway 27787 madebdaylemlrcut 27907 oncutlt 28272 oniso 28279 bdayons 28284 bdayn0p1 28377 poimirlem4 37875 poimirlem32 37903 ismblfin 37912 igenval2 38317 glbconN 39753 nadd2rabtr 43741 isubgruhgr 48228 intubeu 49343 unilbeu 49344 |
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