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| Mirrors > Home > MPE Home > Th. List > ressmplbas2 | Structured version Visualization version GIF version | ||
| Description: The base set of a restricted polynomial algebra consists of power series in the subring which are also polynomials (in the parent ring). (Contributed by Mario Carneiro, 3-Jul-2015.) |
| Ref | Expression |
|---|---|
| ressmpl.s | ⊢ 𝑆 = (𝐼 mPoly 𝑅) |
| ressmpl.h | ⊢ 𝐻 = (𝑅 ↾s 𝑇) |
| ressmpl.u | ⊢ 𝑈 = (𝐼 mPoly 𝐻) |
| ressmpl.b | ⊢ 𝐵 = (Base‘𝑈) |
| ressmpl.1 | ⊢ (𝜑 → 𝐼 ∈ 𝑉) |
| ressmpl.2 | ⊢ (𝜑 → 𝑇 ∈ (SubRing‘𝑅)) |
| ressmplbas2.w | ⊢ 𝑊 = (𝐼 mPwSer 𝐻) |
| ressmplbas2.c | ⊢ 𝐶 = (Base‘𝑊) |
| ressmplbas2.k | ⊢ 𝐾 = (Base‘𝑆) |
| Ref | Expression |
|---|---|
| ressmplbas2 | ⊢ (𝜑 → 𝐵 = (𝐶 ∩ 𝐾)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ressmpl.1 | . . . . . . 7 ⊢ (𝜑 → 𝐼 ∈ 𝑉) | |
| 2 | ressmpl.2 | . . . . . . 7 ⊢ (𝜑 → 𝑇 ∈ (SubRing‘𝑅)) | |
| 3 | eqid 2736 | . . . . . . . 8 ⊢ (𝐼 mPwSer 𝑅) = (𝐼 mPwSer 𝑅) | |
| 4 | ressmpl.h | . . . . . . . 8 ⊢ 𝐻 = (𝑅 ↾s 𝑇) | |
| 5 | ressmplbas2.w | . . . . . . . 8 ⊢ 𝑊 = (𝐼 mPwSer 𝐻) | |
| 6 | ressmplbas2.c | . . . . . . . 8 ⊢ 𝐶 = (Base‘𝑊) | |
| 7 | 3, 4, 5, 6 | subrgpsr 21933 | . . . . . . 7 ⊢ ((𝐼 ∈ 𝑉 ∧ 𝑇 ∈ (SubRing‘𝑅)) → 𝐶 ∈ (SubRing‘(𝐼 mPwSer 𝑅))) |
| 8 | 1, 2, 7 | syl2anc 584 | . . . . . 6 ⊢ (𝜑 → 𝐶 ∈ (SubRing‘(𝐼 mPwSer 𝑅))) |
| 9 | eqid 2736 | . . . . . . 7 ⊢ (Base‘(𝐼 mPwSer 𝑅)) = (Base‘(𝐼 mPwSer 𝑅)) | |
| 10 | 9 | subrgss 20505 | . . . . . 6 ⊢ (𝐶 ∈ (SubRing‘(𝐼 mPwSer 𝑅)) → 𝐶 ⊆ (Base‘(𝐼 mPwSer 𝑅))) |
| 11 | 8, 10 | syl 17 | . . . . 5 ⊢ (𝜑 → 𝐶 ⊆ (Base‘(𝐼 mPwSer 𝑅))) |
| 12 | dfss2 3919 | . . . . 5 ⊢ (𝐶 ⊆ (Base‘(𝐼 mPwSer 𝑅)) ↔ (𝐶 ∩ (Base‘(𝐼 mPwSer 𝑅))) = 𝐶) | |
| 13 | 11, 12 | sylib 218 | . . . 4 ⊢ (𝜑 → (𝐶 ∩ (Base‘(𝐼 mPwSer 𝑅))) = 𝐶) |
| 14 | eqid 2736 | . . . . . . . 8 ⊢ (0g‘𝑅) = (0g‘𝑅) | |
| 15 | 4, 14 | subrg0 20512 | . . . . . . 7 ⊢ (𝑇 ∈ (SubRing‘𝑅) → (0g‘𝑅) = (0g‘𝐻)) |
| 16 | 2, 15 | syl 17 | . . . . . 6 ⊢ (𝜑 → (0g‘𝑅) = (0g‘𝐻)) |
| 17 | 16 | breq2d 5110 | . . . . 5 ⊢ (𝜑 → (𝑓 finSupp (0g‘𝑅) ↔ 𝑓 finSupp (0g‘𝐻))) |
| 18 | 17 | abbidv 2802 | . . . 4 ⊢ (𝜑 → {𝑓 ∣ 𝑓 finSupp (0g‘𝑅)} = {𝑓 ∣ 𝑓 finSupp (0g‘𝐻)}) |
| 19 | 13, 18 | ineq12d 4173 | . . 3 ⊢ (𝜑 → ((𝐶 ∩ (Base‘(𝐼 mPwSer 𝑅))) ∩ {𝑓 ∣ 𝑓 finSupp (0g‘𝑅)}) = (𝐶 ∩ {𝑓 ∣ 𝑓 finSupp (0g‘𝐻)})) |
| 20 | 19 | eqcomd 2742 | . 2 ⊢ (𝜑 → (𝐶 ∩ {𝑓 ∣ 𝑓 finSupp (0g‘𝐻)}) = ((𝐶 ∩ (Base‘(𝐼 mPwSer 𝑅))) ∩ {𝑓 ∣ 𝑓 finSupp (0g‘𝑅)})) |
| 21 | ressmpl.u | . . . 4 ⊢ 𝑈 = (𝐼 mPoly 𝐻) | |
| 22 | eqid 2736 | . . . 4 ⊢ (0g‘𝐻) = (0g‘𝐻) | |
| 23 | ressmpl.b | . . . 4 ⊢ 𝐵 = (Base‘𝑈) | |
| 24 | 21, 5, 6, 22, 23 | mplbas 21945 | . . 3 ⊢ 𝐵 = {𝑓 ∈ 𝐶 ∣ 𝑓 finSupp (0g‘𝐻)} |
| 25 | dfrab3 4271 | . . 3 ⊢ {𝑓 ∈ 𝐶 ∣ 𝑓 finSupp (0g‘𝐻)} = (𝐶 ∩ {𝑓 ∣ 𝑓 finSupp (0g‘𝐻)}) | |
| 26 | 24, 25 | eqtri 2759 | . 2 ⊢ 𝐵 = (𝐶 ∩ {𝑓 ∣ 𝑓 finSupp (0g‘𝐻)}) |
| 27 | ressmpl.s | . . . . . 6 ⊢ 𝑆 = (𝐼 mPoly 𝑅) | |
| 28 | ressmplbas2.k | . . . . . 6 ⊢ 𝐾 = (Base‘𝑆) | |
| 29 | 27, 3, 9, 14, 28 | mplbas 21945 | . . . . 5 ⊢ 𝐾 = {𝑓 ∈ (Base‘(𝐼 mPwSer 𝑅)) ∣ 𝑓 finSupp (0g‘𝑅)} |
| 30 | dfrab3 4271 | . . . . 5 ⊢ {𝑓 ∈ (Base‘(𝐼 mPwSer 𝑅)) ∣ 𝑓 finSupp (0g‘𝑅)} = ((Base‘(𝐼 mPwSer 𝑅)) ∩ {𝑓 ∣ 𝑓 finSupp (0g‘𝑅)}) | |
| 31 | 29, 30 | eqtri 2759 | . . . 4 ⊢ 𝐾 = ((Base‘(𝐼 mPwSer 𝑅)) ∩ {𝑓 ∣ 𝑓 finSupp (0g‘𝑅)}) |
| 32 | 31 | ineq2i 4169 | . . 3 ⊢ (𝐶 ∩ 𝐾) = (𝐶 ∩ ((Base‘(𝐼 mPwSer 𝑅)) ∩ {𝑓 ∣ 𝑓 finSupp (0g‘𝑅)})) |
| 33 | inass 4180 | . . 3 ⊢ ((𝐶 ∩ (Base‘(𝐼 mPwSer 𝑅))) ∩ {𝑓 ∣ 𝑓 finSupp (0g‘𝑅)}) = (𝐶 ∩ ((Base‘(𝐼 mPwSer 𝑅)) ∩ {𝑓 ∣ 𝑓 finSupp (0g‘𝑅)})) | |
| 34 | 32, 33 | eqtr4i 2762 | . 2 ⊢ (𝐶 ∩ 𝐾) = ((𝐶 ∩ (Base‘(𝐼 mPwSer 𝑅))) ∩ {𝑓 ∣ 𝑓 finSupp (0g‘𝑅)}) |
| 35 | 20, 26, 34 | 3eqtr4g 2796 | 1 ⊢ (𝜑 → 𝐵 = (𝐶 ∩ 𝐾)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1541 ∈ wcel 2113 {cab 2714 {crab 3399 ∩ cin 3900 ⊆ wss 3901 class class class wbr 5098 ‘cfv 6492 (class class class)co 7358 finSupp cfsupp 9264 Basecbs 17136 ↾s cress 17157 0gc0g 17359 SubRingcsubrg 20502 mPwSer cmps 21860 mPoly cmpl 21862 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2184 ax-ext 2708 ax-rep 5224 ax-sep 5241 ax-nul 5251 ax-pow 5310 ax-pr 5377 ax-un 7680 ax-cnex 11082 ax-resscn 11083 ax-1cn 11084 ax-icn 11085 ax-addcl 11086 ax-addrcl 11087 ax-mulcl 11088 ax-mulrcl 11089 ax-mulcom 11090 ax-addass 11091 ax-mulass 11092 ax-distr 11093 ax-i2m1 11094 ax-1ne0 11095 ax-1rid 11096 ax-rnegex 11097 ax-rrecex 11098 ax-cnre 11099 ax-pre-lttri 11100 ax-pre-lttrn 11101 ax-pre-ltadd 11102 ax-pre-mulgt0 11103 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-nel 3037 df-ral 3052 df-rex 3061 df-rmo 3350 df-reu 3351 df-rab 3400 df-v 3442 df-sbc 3741 df-csb 3850 df-dif 3904 df-un 3906 df-in 3908 df-ss 3918 df-pss 3921 df-nul 4286 df-if 4480 df-pw 4556 df-sn 4581 df-pr 4583 df-tp 4585 df-op 4587 df-uni 4864 df-int 4903 df-iun 4948 df-iin 4949 df-br 5099 df-opab 5161 df-mpt 5180 df-tr 5206 df-id 5519 df-eprel 5524 df-po 5532 df-so 5533 df-fr 5577 df-se 5578 df-we 5579 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-res 5636 df-ima 5637 df-pred 6259 df-ord 6320 df-on 6321 df-lim 6322 df-suc 6323 df-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 df-fv 6500 df-isom 6501 df-riota 7315 df-ov 7361 df-oprab 7362 df-mpo 7363 df-of 7622 df-ofr 7623 df-om 7809 df-1st 7933 df-2nd 7934 df-supp 8103 df-frecs 8223 df-wrecs 8254 df-recs 8303 df-rdg 8341 df-1o 8397 df-2o 8398 df-er 8635 df-map 8765 df-pm 8766 df-ixp 8836 df-en 8884 df-dom 8885 df-sdom 8886 df-fin 8887 df-fsupp 9265 df-sup 9345 df-oi 9415 df-card 9851 df-pnf 11168 df-mnf 11169 df-xr 11170 df-ltxr 11171 df-le 11172 df-sub 11366 df-neg 11367 df-nn 12146 df-2 12208 df-3 12209 df-4 12210 df-5 12211 df-6 12212 df-7 12213 df-8 12214 df-9 12215 df-n0 12402 df-z 12489 df-dec 12608 df-uz 12752 df-fz 13424 df-fzo 13571 df-seq 13925 df-hash 14254 df-struct 17074 df-sets 17091 df-slot 17109 df-ndx 17121 df-base 17137 df-ress 17158 df-plusg 17190 df-mulr 17191 df-sca 17193 df-vsca 17194 df-ip 17195 df-tset 17196 df-ple 17197 df-ds 17199 df-hom 17201 df-cco 17202 df-0g 17361 df-gsum 17362 df-prds 17367 df-pws 17369 df-mre 17505 df-mrc 17506 df-acs 17508 df-mgm 18565 df-sgrp 18644 df-mnd 18660 df-mhm 18708 df-submnd 18709 df-grp 18866 df-minusg 18867 df-mulg 18998 df-subg 19053 df-ghm 19142 df-cntz 19246 df-cmn 19711 df-abl 19712 df-mgp 20076 df-rng 20088 df-ur 20117 df-ring 20170 df-subrng 20479 df-subrg 20503 df-psr 21865 df-mpl 21867 |
| This theorem is referenced by: ressmplbas 21983 subrgmpl 21987 ressply1bas2 22168 |
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