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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 3096 | . . 3 ⊢ (𝐴 ⊆ 𝐵 → (𝑥 ∈ 𝐴 → 𝑥 ∈ 𝐵)) | |
2 | 1 | imim1d 75 | . 2 ⊢ (𝐴 ⊆ 𝐵 → ((𝑥 ∈ 𝐵 → 𝜑) → (𝑥 ∈ 𝐴 → 𝜑))) |
3 | 2 | ralimdv2 2505 | 1 ⊢ (𝐴 ⊆ 𝐵 → (∀𝑥 ∈ 𝐵 𝜑 → ∀𝑥 ∈ 𝐴 𝜑)) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∈ wcel 1481 ∀wral 2417 ⊆ wss 3076 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-5 1424 ax-7 1425 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-8 1483 ax-11 1485 ax-4 1488 ax-17 1507 ax-i9 1511 ax-ial 1515 ax-i5r 1516 ax-ext 2122 |
This theorem depends on definitions: df-bi 116 df-nf 1438 df-sb 1737 df-clab 2127 df-cleq 2133 df-clel 2136 df-ral 2422 df-in 3082 df-ss 3089 |
This theorem is referenced by: iinss1 3833 poss 4228 sess2 4268 trssord 4310 funco 5171 funimaexglem 5214 isores3 5724 isoini2 5728 smores 6197 smores2 6199 tfrlem5 6219 resixp 6635 ac6sfi 6800 difinfinf 6994 peano5nnnn 7724 peano5nni 8747 caucvgre 10785 rexanuz 10792 cau3lem 10918 isumclim3 11224 fsumiun 11278 ctinf 11979 strsetsid 12031 tgcn 12416 tgcnp 12417 cnss2 12435 cncnp 12438 sslm 12455 metrest 12714 rescncf 12776 suplociccex 12811 limcresi 12843 nninfsellemeq 13385 |
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