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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 1581 | . 2 ⊢ Ⅎ𝑥𝜒 | |
| 2 | nfv 1581 | . 2 ⊢ Ⅎ𝑦𝜓 | |
| 3 | rspc2v.1 | . 2 ⊢ (𝑥 = 𝐴 → (𝜑 ↔ 𝜒)) | |
| 4 | rspc2v.2 | . 2 ⊢ (𝑦 = 𝐵 → (𝜒 ↔ 𝜓)) | |
| 5 | 1, 2, 3, 4 | rspc2 2941 | 1 ⊢ ((𝐴 ∈ 𝐶 ∧ 𝐵 ∈ 𝐷) → (∀𝑥 ∈ 𝐶 ∀𝑦 ∈ 𝐷 𝜑 → 𝜓)) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 104 ↔ wb 105 = wceq 1402 ∈ wcel 2209 ∀wral 2528 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 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-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-v 2823 |
| This theorem is used by: rspc2va 2944 rspc3v 2946 disji2 4122 ontriexmidim 4669 wetriext 4724 f1veqaeq 5975 isorel 6014 oveqrspc2v 6112 fovcld 6193 caovclg 6242 caovcomg 6245 smoel 6571 dcdifsnid 6777 unfiexmid 7225 prfidceq 7235 fiintim 7238 supmoti 7334 supsnti 7346 isotilem 7347 onntri35 7597 onntri45 7601 cauappcvgprlem1 8027 caucvgprlemnkj 8034 caucvgprlemnbj 8035 caucvgprprlemval 8056 ltordlem 8812 frecuzrdgrrn 10860 frec2uzrdg 10861 frecuzrdgrcl 10862 frecuzrdgrclt 10867 seq3caopr3 10943 seq3homo 10979 seqhomog 10982 climcn2 12094 fprodcl2lem 12391 ennnfonelemim 13367 mhmlin 13827 issubg2m 14045 nsgbi 14060 ghmlin 14104 issubrng2 14602 issubrg2 14633 lmodlema 14712 islmodd 14713 rmodislmodlem 14771 rmodislmod 14772 rnglidlmcl 14901 inopn 15195 basis1 15239 basis2 15240 xmeteq0 15551 cncfi 15770 limccnp2lem 15868 logltb 16068 2sqlem8 16408 redcwlpo 17272 redc0 17274 reap0 17275 |
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