| 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 4459 omsinds 4771 fmptcof 5878 fliftfuns 6007 qliftfuns 6897 xpf1o 7149 finexdc 7212 ssfirab 7249 opabfi 7252 iunfidisj 7265 dcfi 7321 cc3 7641 lble 9286 exfzdc 10677 zsupcllemstep 10680 infssuzex 10684 uzsinds 10903 sumeq2 12151 sumfct 12166 sumrbdclem 12170 summodclem3 12173 summodclem2a 12174 zsumdc 12177 fsumgcl 12179 fsum3 12180 fsumf1o 12183 isumss 12184 isumss2 12186 fsum3cvg2 12187 fsumadd 12199 isummulc2 12219 fsum2dlemstep 12227 fisumcom2 12231 fsumshftm 12238 fisum0diag2 12240 fsummulc2 12241 fsum00 12255 fsumabs 12258 fsumrelem 12264 fsumiun 12270 isumshft 12283 mertenslem2 12329 prodeq2 12350 prodrbdclem 12364 prodmodclem3 12368 prodmodclem2a 12369 zproddc 12372 fprodseq 12376 prodfct 12380 fprodf1o 12381 prodssdc 12382 fprodmul 12384 fprodm1s 12394 fprodp1s 12395 fprodabs 12409 fprodap0 12414 fprod2dlemstep 12415 fprodcom2fi 12419 fprodrec 12422 fprodap0f 12429 fprodle 12433 bezoutlemmain 12801 nnwosdc 12842 pcmpt 13152 ctiunctlemudc 13387 gsummptfidmadd 14252 gsummptfidmsplit 14255 gsumsnfdcmn 14258 idjusnfi 14271 iuncld 15353 txcnp 15509 fsumcncntop 15805 bj-nntrans 17194 |
| Copyright terms: Public domain | W3C validator |