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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 3242 | . . 3 ⊢ (𝐴 ⊆ 𝐵 → (𝑥 ∈ 𝐴 → 𝑥 ∈ 𝐵)) | |
| 2 | 1 | imim1d 75 | . 2 ⊢ (𝐴 ⊆ 𝐵 → ((𝑥 ∈ 𝐵 → 𝜑) → (𝑥 ∈ 𝐴 → 𝜑))) |
| 3 | 2 | ralimdv2 2620 | 1 ⊢ (𝐴 ⊆ 𝐵 → (∀𝑥 ∈ 𝐵 𝜑 → ∀𝑥 ∈ 𝐴 𝜑)) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2209 ∀wral 2528 ⊆ wss 3220 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-11 1559 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 |
| This proof depends on definitions: df-bi 117 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-ral 2533 df-in 3226 df-ss 3233 |
| This theorem is used by: iinss1 4024 poss 4443 sess2 4483 trssord 4525 funco 5417 funimaexglem 5464 isores3 6021 isoini2 6025 smores 6563 smores2 6565 tfrlem5 6585 resixp 7015 ac6sfi 7202 difinfinf 7442 peano5nnnn 8260 peano5nni 9310 flapcl 10722 flaplelt 10724 caucvgre 11762 rexanuz 11769 cau3lem 11896 isumclim3 12208 fsumiun 12262 pcfac 13151 ctinf 13372 strsetsid 13436 imasaddfnlemg 13686 tgcn 15361 tgcnp 15362 cnss2 15380 cncnp 15383 sslm 15400 metrest 15659 rescncf 15734 suplociccex 15778 limcresi 15819 uspgr2wlkeq 16728 nninfsellemeq 17179 |
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