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| Mirrors > Home > ILE Home > Th. List > rspc | GIF version | ||
| Description: Restricted specialization, using implicit substitution. (Contributed by NM, 19-Apr-2005.) (Revised by Mario Carneiro, 11-Oct-2016.) |
| Ref | Expression |
|---|---|
| rspc.1 | ⊢ Ⅎ𝑥𝜓 |
| rspc.2 | ⊢ (𝑥 = 𝐴 → (𝜑 ↔ 𝜓)) |
| Ref | Expression |
|---|---|
| rspc | ⊢ (𝐴 ∈ 𝐵 → (∀𝑥 ∈ 𝐵 𝜑 → 𝜓)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-ral 2516 | . 2 ⊢ (∀𝑥 ∈ 𝐵 𝜑 ↔ ∀𝑥(𝑥 ∈ 𝐵 → 𝜑)) | |
| 2 | nfcv 2375 | . . . 4 ⊢ Ⅎ𝑥𝐴 | |
| 3 | nfv 1577 | . . . . 5 ⊢ Ⅎ𝑥 𝐴 ∈ 𝐵 | |
| 4 | rspc.1 | . . . . 5 ⊢ Ⅎ𝑥𝜓 | |
| 5 | 3, 4 | nfim 1621 | . . . 4 ⊢ Ⅎ𝑥(𝐴 ∈ 𝐵 → 𝜓) |
| 6 | eleq1 2294 | . . . . 5 ⊢ (𝑥 = 𝐴 → (𝑥 ∈ 𝐵 ↔ 𝐴 ∈ 𝐵)) | |
| 7 | rspc.2 | . . . . 5 ⊢ (𝑥 = 𝐴 → (𝜑 ↔ 𝜓)) | |
| 8 | 6, 7 | imbi12d 234 | . . . 4 ⊢ (𝑥 = 𝐴 → ((𝑥 ∈ 𝐵 → 𝜑) ↔ (𝐴 ∈ 𝐵 → 𝜓))) |
| 9 | 2, 5, 8 | spcgf 2889 | . . 3 ⊢ (𝐴 ∈ 𝐵 → (∀𝑥(𝑥 ∈ 𝐵 → 𝜑) → (𝐴 ∈ 𝐵 → 𝜓))) |
| 10 | 9 | pm2.43a 51 | . 2 ⊢ (𝐴 ∈ 𝐵 → (∀𝑥(𝑥 ∈ 𝐵 → 𝜑) → 𝜓)) |
| 11 | 1, 10 | biimtrid 152 | 1 ⊢ (𝐴 ∈ 𝐵 → (∀𝑥 ∈ 𝐵 𝜑 → 𝜓)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ↔ wb 105 ∀wal 1396 = wceq 1398 Ⅎwnf 1509 ∈ wcel 2202 ∀wral 2511 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-tru 1401 df-nf 1510 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-ral 2516 df-v 2805 |
| This theorem is referenced by: rspcv 2907 rspc2 2922 rspc2vd 3197 pofun 4415 omsinds 4726 fmptcof 5822 fliftfuns 5949 qliftfuns 6831 xpf1o 7073 finexdc 7135 ssfirab 7172 opabfi 7175 iunfidisj 7188 dcfi 7223 cc3 7530 lble 9170 exfzdc 10530 zsupcllemstep 10533 infssuzex 10537 uzsinds 10750 sumeq2 11980 sumfct 11995 sumrbdclem 11999 summodclem3 12002 summodclem2a 12003 zsumdc 12006 fsumgcl 12008 fsum3 12009 fsumf1o 12012 isumss 12013 isumss2 12015 fsum3cvg2 12016 fsumadd 12028 isummulc2 12048 fsum2dlemstep 12056 fisumcom2 12060 fsumshftm 12067 fisum0diag2 12069 fsummulc2 12070 fsum00 12084 fsumabs 12087 fsumrelem 12093 fsumiun 12099 isumshft 12112 mertenslem2 12158 prodeq2 12179 prodrbdclem 12193 prodmodclem3 12197 prodmodclem2a 12198 zproddc 12201 fprodseq 12205 prodfct 12209 fprodf1o 12210 prodssdc 12211 fprodmul 12213 fprodm1s 12223 fprodp1s 12224 fprodabs 12238 fprodap0 12243 fprod2dlemstep 12244 fprodcom2fi 12248 fprodrec 12251 fprodap0f 12258 fprodle 12262 bezoutlemmain 12630 nnwosdc 12671 pcmpt 12977 ctiunctlemudc 13119 gsumfzfsumlemm 14663 iuncld 14906 txcnp 15062 fsumcncntop 15358 bj-nntrans 16647 |
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