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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 2422 | . 2 ⊢ (∀𝑥 ∈ 𝐵 𝜑 ↔ ∀𝑥(𝑥 ∈ 𝐵 → 𝜑)) | |
2 | nfcv 2282 | . . . 4 ⊢ Ⅎ𝑥𝐴 | |
3 | nfv 1509 | . . . . 5 ⊢ Ⅎ𝑥 𝐴 ∈ 𝐵 | |
4 | rspc.1 | . . . . 5 ⊢ Ⅎ𝑥𝜓 | |
5 | 3, 4 | nfim 1552 | . . . 4 ⊢ Ⅎ𝑥(𝐴 ∈ 𝐵 → 𝜓) |
6 | eleq1 2203 | . . . . 5 ⊢ (𝑥 = 𝐴 → (𝑥 ∈ 𝐵 ↔ 𝐴 ∈ 𝐵)) | |
7 | rspc.2 | . . . . 5 ⊢ (𝑥 = 𝐴 → (𝜑 ↔ 𝜓)) | |
8 | 6, 7 | imbi12d 233 | . . . 4 ⊢ (𝑥 = 𝐴 → ((𝑥 ∈ 𝐵 → 𝜑) ↔ (𝐴 ∈ 𝐵 → 𝜓))) |
9 | 2, 5, 8 | spcgf 2771 | . . 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 | syl5bi 151 | 1 ⊢ (𝐴 ∈ 𝐵 → (∀𝑥 ∈ 𝐵 𝜑 → 𝜓)) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ↔ wb 104 ∀wal 1330 = wceq 1332 Ⅎwnf 1437 ∈ wcel 1481 ∀wral 2417 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 699 ax-5 1424 ax-7 1425 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-8 1483 ax-10 1484 ax-11 1485 ax-i12 1486 ax-bndl 1487 ax-4 1488 ax-17 1507 ax-i9 1511 ax-ial 1515 ax-i5r 1516 ax-ext 2122 |
This theorem depends on definitions: df-bi 116 df-tru 1335 df-nf 1438 df-sb 1737 df-clab 2127 df-cleq 2133 df-clel 2136 df-nfc 2271 df-ral 2422 df-v 2691 |
This theorem is referenced by: rspcv 2789 rspc2 2804 pofun 4242 omsinds 4543 fmptcof 5595 fliftfuns 5707 qliftfuns 6521 xpf1o 6746 finexdc 6804 ssfirab 6830 iunfidisj 6842 cc3 7100 lble 8729 exfzdc 10048 uzsinds 10246 sumeq2 11160 sumfct 11175 sumrbdclem 11178 summodclem3 11181 summodclem2a 11182 zsumdc 11185 fsumgcl 11187 fsum3 11188 fsumf1o 11191 isumss 11192 isumss2 11194 fsum3cvg2 11195 fsumadd 11207 isummulc2 11227 fsum2dlemstep 11235 fisumcom2 11239 fsumshftm 11246 fisum0diag2 11248 fsummulc2 11249 fsum00 11263 fsumabs 11266 fsumrelem 11272 fsumiun 11278 isumshft 11291 mertenslem2 11337 prodeq2 11358 prodrbdclem 11372 prodmodclem3 11376 prodmodclem2a 11377 zproddc 11380 fprodseq 11384 zsupcllemstep 11674 infssuzex 11678 bezoutlemmain 11722 ctiunctlemudc 11986 iuncld 12323 txcnp 12479 fsumcncntop 12764 bj-nntrans 13320 |
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