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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 2527 | . 2 ⊢ (∀𝑥 ∈ 𝐵 𝜑 ↔ ∀𝑥(𝑥 ∈ 𝐵 → 𝜑)) | |
| 2 | nfcv 2386 | . . . 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 2297 | . . . . 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 2901 | . . 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 2205 ∀wral 2522 |
| 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 2216 |
| This theorem depends on definitions: df-bi 117 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ral 2527 df-v 2817 |
| This theorem is referenced by: rspcv 2919 rspc2 2935 rspc2vd 3210 pofun 4438 omsinds 4749 fmptcof 5849 fliftfuns 5977 qliftfuns 6866 xpf1o 7110 finexdc 7173 ssfirab 7210 opabfi 7213 iunfidisj 7226 dcfi 7281 cc3 7598 lble 9238 exfzdc 10608 zsupcllemstep 10611 infssuzex 10615 uzsinds 10830 sumeq2 12069 sumfct 12084 sumrbdclem 12088 summodclem3 12091 summodclem2a 12092 zsumdc 12095 fsumgcl 12097 fsum3 12098 fsumf1o 12101 isumss 12102 isumss2 12104 fsum3cvg2 12105 fsumadd 12117 isummulc2 12137 fsum2dlemstep 12145 fisumcom2 12149 fsumshftm 12156 fisum0diag2 12158 fsummulc2 12159 fsum00 12173 fsumabs 12176 fsumrelem 12182 fsumiun 12188 isumshft 12201 mertenslem2 12247 prodeq2 12268 prodrbdclem 12282 prodmodclem3 12286 prodmodclem2a 12287 zproddc 12290 fprodseq 12294 prodfct 12298 fprodf1o 12299 prodssdc 12300 fprodmul 12302 fprodm1s 12312 fprodp1s 12313 fprodabs 12327 fprodap0 12332 fprod2dlemstep 12333 fprodcom2fi 12337 fprodrec 12340 fprodap0f 12347 fprodle 12351 bezoutlemmain 12719 nnwosdc 12760 pcmpt 13066 ctiunctlemudc 13272 gsumfzfsumlemm 14847 iuncld 15092 txcnp 15248 fsumcncntop 15544 bj-nntrans 16833 |
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