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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 4445 sess2 4485 trssord 4527 funco 5420 funimaexglem 5467 isores3 6024 isoini2 6028 smores 6568 smores2 6570 tfrlem5 6590 resixp 7021 ac6sfi 7208 difinfinf 7447 peano5nnnn 8265 peano5nni 9316 flapcl 10727 flaplelt 10729 caucvgre 11768 rexanuz 11775 cau3lem 11902 isumclim3 12214 fsumiun 12268 pcfac 13157 ctinf 13378 strsetsid 13442 imasaddfnlemg 13693 cntz2ss 14167 cntzmhm2 14173 gsumresfi 14262 tgcn 15451 tgcnp 15452 cnss2 15470 cncnp 15473 sslm 15490 metrest 15749 rescncf 15824 suplociccex 15868 limcresi 15909 uspgr2wlkeq 16828 nninfsellemeq 17280 |
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