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| Mirrors > Home > ILE Home > Th. List > ssralv | GIF version | ||
| Description: Quantification restricted to a subclass. (Contributed by NM, 11-Mar-2006.) |
| Ref | Expression |
|---|---|
| ssralv | ⊢ (𝐴 ⊆ 𝐵 → (∀𝑥 ∈ 𝐵 𝜑 → ∀𝑥 ∈ 𝐴 𝜑)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ssel 3222 | . . 3 ⊢ (𝐴 ⊆ 𝐵 → (𝑥 ∈ 𝐴 → 𝑥 ∈ 𝐵)) | |
| 2 | 1 | imim1d 75 | . 2 ⊢ (𝐴 ⊆ 𝐵 → ((𝑥 ∈ 𝐵 → 𝜑) → (𝑥 ∈ 𝐴 → 𝜑))) |
| 3 | 2 | ralimdv2 2603 | 1 ⊢ (𝐴 ⊆ 𝐵 → (∀𝑥 ∈ 𝐵 𝜑 → ∀𝑥 ∈ 𝐴 𝜑)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∈ wcel 2202 ∀wral 2511 ⊆ wss 3201 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-11 1555 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-nf 1510 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-ral 2516 df-in 3207 df-ss 3214 |
| This theorem is referenced by: iinss1 3987 poss 4401 sess2 4441 trssord 4483 funco 5373 funimaexglem 5420 isores3 5966 isoini2 5970 smores 6501 smores2 6503 tfrlem5 6523 resixp 6945 ac6sfi 7130 difinfinf 7343 peano5nnnn 8155 peano5nni 9188 caucvgre 11604 rexanuz 11611 cau3lem 11737 isumclim3 12047 fsumiun 12101 pcfac 12986 ctinf 13114 strsetsid 13178 imasaddfnlemg 13460 tgcn 15002 tgcnp 15003 cnss2 15021 cncnp 15024 sslm 15041 metrest 15300 rescncf 15375 suplociccex 15419 limcresi 15460 uspgr2wlkeq 16289 nninfsellemeq 16723 |
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