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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 4671 wetriext 4726 f1veqaeq 5978 isorel 6017 oveqrspc2v 6115 fovcld 6196 caovclg 6245 caovcomg 6248 smoel 6576 dcdifsnid 6782 unfiexmid 7231 prfidceq 7241 fiintim 7244 supmoti 7339 supsnti 7351 isotilem 7352 onntri35 7602 onntri45 7606 cauappcvgprlem1 8032 caucvgprlemnkj 8039 caucvgprlemnbj 8040 caucvgprprlemval 8061 ltordlem 8817 frecuzrdgrrn 10865 frec2uzrdg 10866 frecuzrdgrcl 10867 frecuzrdgrclt 10872 seq3caopr3 10948 seq3homo 10984 seqhomog 10987 climcn2 12099 fprodcl2lem 12396 ennnfonelemim 13372 mhmlin 13832 issubg2m 14050 nsgbi 14065 ghmlin 14109 issubrng2 14626 issubrg2 14657 lmodlema 14736 islmodd 14737 rmodislmodlem 14795 rmodislmod 14796 rnglidlmcl 14925 inopn 15246 basis1 15290 basis2 15291 xmeteq0 15602 cncfi 15821 limccnp2lem 15919 logltb 16121 2sqlem8 16464 redcwlpo 17329 redc0 17331 reap0 17332 |
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