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Mirrors > Home > ILE Home > Th. List > rspc2v | GIF version |
Description: 2-variable restricted specialization, using implicit substitution. (Contributed by NM, 13-Sep-1999.) |
Ref | Expression |
---|---|
rspc2v.1 | ⊢ (𝑥 = 𝐴 → (𝜑 ↔ 𝜒)) |
rspc2v.2 | ⊢ (𝑦 = 𝐵 → (𝜒 ↔ 𝜓)) |
Ref | Expression |
---|---|
rspc2v | ⊢ ((𝐴 ∈ 𝐶 ∧ 𝐵 ∈ 𝐷) → (∀𝑥 ∈ 𝐶 ∀𝑦 ∈ 𝐷 𝜑 → 𝜓)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nfv 1508 | . 2 ⊢ Ⅎ𝑥𝜒 | |
2 | nfv 1508 | . 2 ⊢ Ⅎ𝑦𝜓 | |
3 | rspc2v.1 | . 2 ⊢ (𝑥 = 𝐴 → (𝜑 ↔ 𝜒)) | |
4 | rspc2v.2 | . 2 ⊢ (𝑦 = 𝐵 → (𝜒 ↔ 𝜓)) | |
5 | 1, 2, 3, 4 | rspc2 2800 | 1 ⊢ ((𝐴 ∈ 𝐶 ∧ 𝐵 ∈ 𝐷) → (∀𝑥 ∈ 𝐶 ∀𝑦 ∈ 𝐷 𝜑 → 𝜓)) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ wa 103 ↔ wb 104 = wceq 1331 ∈ wcel 1480 ∀wral 2416 |
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-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 |
This theorem depends on definitions: df-bi 116 df-tru 1334 df-nf 1437 df-sb 1736 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-ral 2421 df-v 2688 |
This theorem is referenced by: rspc2va 2803 rspc3v 2805 disji2 3922 wetriext 4491 f1veqaeq 5670 isorel 5709 fovcl 5876 caovclg 5923 caovcomg 5926 smoel 6197 dcdifsnid 6400 unfiexmid 6806 fiintim 6817 supmoti 6880 supsnti 6892 isotilem 6893 cauappcvgprlem1 7467 caucvgprlemnkj 7474 caucvgprlemnbj 7475 caucvgprprlemval 7496 ltordlem 8244 frecuzrdgrrn 10181 frec2uzrdg 10182 frecuzrdgrcl 10183 frecuzrdgrclt 10188 seq3caopr3 10254 seq3homo 10283 climcn2 11078 ennnfonelemim 11937 inopn 12170 basis1 12214 basis2 12215 xmeteq0 12528 cncfi 12734 limccnp2lem 12814 |
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