| Mathbox for Thierry Arnoux |
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| Mirrors > Home > MPE Home > Th. List > Mathboxes > lsssra | Structured version Visualization version GIF version | ||
| Description: A subring is a subspace of the subring algebra. (Contributed by Thierry Arnoux, 2-Apr-2025.) |
| Ref | Expression |
|---|---|
| lsssra.w | ⊢ 𝑊 = ((subringAlg ‘𝑅)‘𝐶) |
| lsssra.a | ⊢ 𝐴 = (Base‘𝑅) |
| lsssra.s | ⊢ 𝑆 = (𝑅 ↾s 𝐵) |
| lsssra.b | ⊢ (𝜑 → 𝐵 ∈ (SubRing‘𝑅)) |
| lsssra.c | ⊢ (𝜑 → 𝐶 ∈ (SubRing‘𝑆)) |
| Ref | Expression |
|---|---|
| lsssra | ⊢ (𝜑 → 𝐵 ∈ (LSubSp‘𝑊)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | lsssra.b | . . . . 5 ⊢ (𝜑 → 𝐵 ∈ (SubRing‘𝑅)) | |
| 2 | lsssra.c | . . . . 5 ⊢ (𝜑 → 𝐶 ∈ (SubRing‘𝑆)) | |
| 3 | lsssra.s | . . . . . . 7 ⊢ 𝑆 = (𝑅 ↾s 𝐵) | |
| 4 | 3 | subsubrg 20531 | . . . . . 6 ⊢ (𝐵 ∈ (SubRing‘𝑅) → (𝐶 ∈ (SubRing‘𝑆) ↔ (𝐶 ∈ (SubRing‘𝑅) ∧ 𝐶 ⊆ 𝐵))) |
| 5 | 4 | biimpa 476 | . . . . 5 ⊢ ((𝐵 ∈ (SubRing‘𝑅) ∧ 𝐶 ∈ (SubRing‘𝑆)) → (𝐶 ∈ (SubRing‘𝑅) ∧ 𝐶 ⊆ 𝐵)) |
| 6 | 1, 2, 5 | syl2anc 584 | . . . 4 ⊢ (𝜑 → (𝐶 ∈ (SubRing‘𝑅) ∧ 𝐶 ⊆ 𝐵)) |
| 7 | 6 | simpld 494 | . . 3 ⊢ (𝜑 → 𝐶 ∈ (SubRing‘𝑅)) |
| 8 | lsssra.w | . . . 4 ⊢ 𝑊 = ((subringAlg ‘𝑅)‘𝐶) | |
| 9 | 8 | sralmod 21139 | . . 3 ⊢ (𝐶 ∈ (SubRing‘𝑅) → 𝑊 ∈ LMod) |
| 10 | 7, 9 | syl 17 | . 2 ⊢ (𝜑 → 𝑊 ∈ LMod) |
| 11 | lsssra.a | . . . . 5 ⊢ 𝐴 = (Base‘𝑅) | |
| 12 | 11 | subrgss 20505 | . . . 4 ⊢ (𝐵 ∈ (SubRing‘𝑅) → 𝐵 ⊆ 𝐴) |
| 13 | 1, 12 | syl 17 | . . 3 ⊢ (𝜑 → 𝐵 ⊆ 𝐴) |
| 14 | 8 | a1i 11 | . . . . 5 ⊢ (𝜑 → 𝑊 = ((subringAlg ‘𝑅)‘𝐶)) |
| 15 | 6 | simprd 495 | . . . . . . 7 ⊢ (𝜑 → 𝐶 ⊆ 𝐵) |
| 16 | 15, 13 | sstrd 3944 | . . . . . 6 ⊢ (𝜑 → 𝐶 ⊆ 𝐴) |
| 17 | 16, 11 | sseqtrdi 3974 | . . . . 5 ⊢ (𝜑 → 𝐶 ⊆ (Base‘𝑅)) |
| 18 | 14, 17 | srabase 21129 | . . . 4 ⊢ (𝜑 → (Base‘𝑅) = (Base‘𝑊)) |
| 19 | 11, 18 | eqtrid 2783 | . . 3 ⊢ (𝜑 → 𝐴 = (Base‘𝑊)) |
| 20 | 13, 19 | sseqtrd 3970 | . 2 ⊢ (𝜑 → 𝐵 ⊆ (Base‘𝑊)) |
| 21 | 1 | elfvexd 6870 | . . . . 5 ⊢ (𝜑 → 𝑅 ∈ V) |
| 22 | 11, 3, 13, 15, 21 | resssra 33743 | . . . 4 ⊢ (𝜑 → ((subringAlg ‘𝑆)‘𝐶) = (((subringAlg ‘𝑅)‘𝐶) ↾s 𝐵)) |
| 23 | 8 | oveq1i 7368 | . . . 4 ⊢ (𝑊 ↾s 𝐵) = (((subringAlg ‘𝑅)‘𝐶) ↾s 𝐵) |
| 24 | 22, 23 | eqtr4di 2789 | . . 3 ⊢ (𝜑 → ((subringAlg ‘𝑆)‘𝐶) = (𝑊 ↾s 𝐵)) |
| 25 | eqid 2736 | . . . . 5 ⊢ ((subringAlg ‘𝑆)‘𝐶) = ((subringAlg ‘𝑆)‘𝐶) | |
| 26 | 25 | sralmod 21139 | . . . 4 ⊢ (𝐶 ∈ (SubRing‘𝑆) → ((subringAlg ‘𝑆)‘𝐶) ∈ LMod) |
| 27 | 2, 26 | syl 17 | . . 3 ⊢ (𝜑 → ((subringAlg ‘𝑆)‘𝐶) ∈ LMod) |
| 28 | 24, 27 | eqeltrrd 2837 | . 2 ⊢ (𝜑 → (𝑊 ↾s 𝐵) ∈ LMod) |
| 29 | eqid 2736 | . . . 4 ⊢ (𝑊 ↾s 𝐵) = (𝑊 ↾s 𝐵) | |
| 30 | eqid 2736 | . . . 4 ⊢ (Base‘𝑊) = (Base‘𝑊) | |
| 31 | eqid 2736 | . . . 4 ⊢ (LSubSp‘𝑊) = (LSubSp‘𝑊) | |
| 32 | 29, 30, 31 | islss3 20910 | . . 3 ⊢ (𝑊 ∈ LMod → (𝐵 ∈ (LSubSp‘𝑊) ↔ (𝐵 ⊆ (Base‘𝑊) ∧ (𝑊 ↾s 𝐵) ∈ LMod))) |
| 33 | 32 | biimpar 477 | . 2 ⊢ ((𝑊 ∈ LMod ∧ (𝐵 ⊆ (Base‘𝑊) ∧ (𝑊 ↾s 𝐵) ∈ LMod)) → 𝐵 ∈ (LSubSp‘𝑊)) |
| 34 | 10, 20, 28, 33 | syl12anc 836 | 1 ⊢ (𝜑 → 𝐵 ∈ (LSubSp‘𝑊)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1541 ∈ wcel 2113 Vcvv 3440 ⊆ wss 3901 ‘cfv 6492 (class class class)co 7358 Basecbs 17136 ↾s cress 17157 SubRingcsubrg 20502 LModclmod 20811 LSubSpclss 20882 subringAlg csra 21123 |
| 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-op 4587 df-uni 4864 df-iun 4948 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-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-riota 7315 df-ov 7361 df-oprab 7362 df-mpo 7363 df-om 7809 df-1st 7933 df-2nd 7934 df-frecs 8223 df-wrecs 8254 df-recs 8303 df-rdg 8341 df-er 8635 df-en 8884 df-dom 8885 df-sdom 8886 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-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-0g 17361 df-mgm 18565 df-sgrp 18644 df-mnd 18660 df-grp 18866 df-minusg 18867 df-sbg 18868 df-subg 19053 df-mgp 20076 df-ur 20117 df-ring 20170 df-subrg 20503 df-lmod 20813 df-lss 20883 df-sra 21125 |
| This theorem is referenced by: algextdeglem2 33875 |
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