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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 2515 | . 2 ⊢ (∀𝑥 ∈ 𝐵 𝜑 ↔ ∀𝑥(𝑥 ∈ 𝐵 → 𝜑)) | |
| 2 | nfcv 2374 | . . . 4 ⊢ Ⅎ𝑥𝐴 | |
| 3 | nfv 1576 | . . . . 5 ⊢ Ⅎ𝑥 𝐴 ∈ 𝐵 | |
| 4 | rspc.1 | . . . . 5 ⊢ Ⅎ𝑥𝜓 | |
| 5 | 3, 4 | nfim 1620 | . . . 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 2888 | . . 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 1395 = wceq 1397 Ⅎwnf 1508 ∈ wcel 2202 ∀wral 2510 |
| 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-tru 1400 df-nf 1509 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ral 2515 df-v 2804 |
| This theorem is referenced by: rspcv 2906 rspc2 2921 rspc2vd 3196 pofun 4409 omsinds 4720 fmptcof 5814 fliftfuns 5939 qliftfuns 6788 xpf1o 7030 finexdc 7092 ssfirab 7129 opabfi 7132 iunfidisj 7145 dcfi 7180 cc3 7487 lble 9127 exfzdc 10487 zsupcllemstep 10490 infssuzex 10494 uzsinds 10707 sumeq2 11924 sumfct 11939 sumrbdclem 11943 summodclem3 11946 summodclem2a 11947 zsumdc 11950 fsumgcl 11952 fsum3 11953 fsumf1o 11956 isumss 11957 isumss2 11959 fsum3cvg2 11960 fsumadd 11972 isummulc2 11992 fsum2dlemstep 12000 fisumcom2 12004 fsumshftm 12011 fisum0diag2 12013 fsummulc2 12014 fsum00 12028 fsumabs 12031 fsumrelem 12037 fsumiun 12043 isumshft 12056 mertenslem2 12102 prodeq2 12123 prodrbdclem 12137 prodmodclem3 12141 prodmodclem2a 12142 zproddc 12145 fprodseq 12149 prodfct 12153 fprodf1o 12154 prodssdc 12155 fprodmul 12157 fprodm1s 12167 fprodp1s 12168 fprodabs 12182 fprodap0 12187 fprod2dlemstep 12188 fprodcom2fi 12192 fprodrec 12195 fprodap0f 12202 fprodle 12206 bezoutlemmain 12574 nnwosdc 12615 pcmpt 12921 ctiunctlemudc 13063 gsumfzfsumlemm 14607 iuncld 14845 txcnp 15001 fsumcncntop 15297 bj-nntrans 16572 |
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