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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 3650 | . . . 4 ⊢ (𝑥 ∈ {𝑦 ∈ 𝐴 ∣ 𝜑} ↔ (𝑥 ∈ 𝐴 ∧ 𝜓)) |
| 3 | 2 | imbi1i 351 | . . 3 ⊢ ((𝑥 ∈ {𝑦 ∈ 𝐴 ∣ 𝜑} → 𝜒) ↔ ((𝑥 ∈ 𝐴 ∧ 𝜓) → 𝜒)) |
| 4 | impexp 454 | . . 3 ⊢ (((𝑥 ∈ 𝐴 ∧ 𝜓) → 𝜒) ↔ (𝑥 ∈ 𝐴 → (𝜓 → 𝜒))) | |
| 5 | 3, 4 | bitri 277 | . 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 |
| Syntax hints: → wi 4 ↔ wb 208 ∧ wa 399 ∈ wcel 2142 ∀wral 3076 {crab 3414 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1815 ax-4 1829 ax-5 1930 ax-6 1987 ax-7 2028 ax-8 2144 ax-9 2152 ax-ext 2734 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-tru 1563 df-ex 1800 df-sb 2091 df-clab 2741 df-cleq 2754 df-clel 2837 df-ral 3077 df-rab 3415 df-v 3456 |
| This theorem is referenced by: frminex 5626 wereu2 5644 frpomin 6327 weniso 7338 zmin 12945 prmreclem1 16952 lublecllem 18390 mgmhmeql 18750 mhmeql 18860 ghmeql 19279 pgpfac1lem5 20121 lmhmeql 21122 islindf4 21890 1stcfb 23505 fbssfi 23897 filssufilg 23971 txflf 24066 ptcmplem3 24114 symgtgp 24166 tgpconncompeqg 24172 cnllycmp 25018 ovolgelb 25542 dyadmax 25660 lhop1 26076 radcnvlt1 26481 noextenddif 27732 conway 27872 madebdaylemlrcut 27992 oncutlt 28357 oniso 28364 bdayons 28369 bdayn0p1 28462 poimirlem4 38123 poimirlem32 38151 ismblfin 38160 igenval2 38565 glbconN 40001 nadd2rabtr 43961 isubgruhgr 48490 intubeu 49605 unilbeu 49606 |
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