| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 7634 lble 9278 exfzdc 10661 zsupcllemstep 10664 infssuzex 10668 uzsinds 10883 sumeq2 12127 sumfct 12142 sumrbdclem 12146 summodclem3 12149 summodclem2a 12150 zsumdc 12153 fsumgcl 12155 fsum3 12156 fsumf1o 12159 isumss 12160 isumss2 12162 fsum3cvg2 12163 fsumadd 12175 isummulc2 12195 fsum2dlemstep 12203 fisumcom2 12207 fsumshftm 12214 fisum0diag2 12216 fsummulc2 12217 fsum00 12231 fsumabs 12234 fsumrelem 12240 fsumiun 12246 isumshft 12259 mertenslem2 12305 prodeq2 12326 prodrbdclem 12340 prodmodclem3 12344 prodmodclem2a 12345 zproddc 12348 fprodseq 12352 prodfct 12356 fprodf1o 12357 prodssdc 12358 fprodmul 12360 fprodm1s 12370 fprodp1s 12371 fprodabs 12385 fprodap0 12390 fprod2dlemstep 12391 fprodcom2fi 12395 fprodrec 12398 fprodap0f 12405 fprodle 12409 bezoutlemmain 12777 nnwosdc 12818 pcmpt 13124 ctiunctlemudc 13330 gsummptfidmadd 14163 iuncld 15218 txcnp 15374 fsumcncntop 15670 bj-nntrans 16989 |
| Copyright terms: Public domain | W3C validator |