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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 2533 | . 2 ⊢ (∀𝑥 ∈ 𝐵 𝜑 ↔ ∀𝑥(𝑥 ∈ 𝐵 → 𝜑)) | |
| 2 | nfcv 2392 | . . . 4 ⊢ Ⅎ𝑥𝐴 | |
| 3 | nfv 1581 | . . . . 5 ⊢ Ⅎ𝑥 𝐴 ∈ 𝐵 | |
| 4 | rspc.1 | . . . . 5 ⊢ Ⅎ𝑥𝜓 | |
| 5 | 3, 4 | nfim 1625 | . . . 4 ⊢ Ⅎ𝑥(𝐴 ∈ 𝐵 → 𝜓) |
| 6 | eleq1 2301 | . . . . 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 2907 | . . 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 |
| This proof depends on syntax axioms: → wi 4 ↔ wb 105 ∀wal 1400 = wceq 1402 Ⅎwnf 1513 ∈ 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: rspcv 2925 rspc2 2941 rspc2vd 3216 pofun 4457 omsinds 4769 fmptcof 5875 fliftfuns 6004 qliftfuns 6893 xpf1o 7144 finexdc 7207 ssfirab 7244 opabfi 7247 iunfidisj 7260 dcfi 7315 cc3 7635 lble 9280 exfzdc 10670 zsupcllemstep 10673 infssuzex 10677 uzsinds 10895 sumeq2 12143 sumfct 12158 sumrbdclem 12162 summodclem3 12165 summodclem2a 12166 zsumdc 12169 fsumgcl 12171 fsum3 12172 fsumf1o 12175 isumss 12176 isumss2 12178 fsum3cvg2 12179 fsumadd 12191 isummulc2 12211 fsum2dlemstep 12219 fisumcom2 12223 fsumshftm 12230 fisum0diag2 12232 fsummulc2 12233 fsum00 12247 fsumabs 12250 fsumrelem 12256 fsumiun 12262 isumshft 12275 mertenslem2 12321 prodeq2 12342 prodrbdclem 12356 prodmodclem3 12360 prodmodclem2a 12361 zproddc 12364 fprodseq 12368 prodfct 12372 fprodf1o 12373 prodssdc 12374 fprodmul 12376 fprodm1s 12386 fprodp1s 12387 fprodabs 12401 fprodap0 12406 fprod2dlemstep 12407 fprodcom2fi 12411 fprodrec 12414 fprodap0f 12421 fprodle 12425 bezoutlemmain 12793 nnwosdc 12834 pcmpt 13144 ctiunctlemudc 13379 gsummptfidmadd 14212 iuncld 15268 txcnp 15424 fsumcncntop 15720 bj-nntrans 17099 |
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