| 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 20862 | . . . . . 6 ⊢ (𝐵 ∈ (SubRing‘𝑅) → (𝐶 ∈ (SubRing‘𝑆) ↔ (𝐶 ∈ (SubRing‘𝑅) ∧ 𝐶 ⊆ 𝐵))) |
| 5 | 4 | biimpa 482 | . . . . 5 ⊢ ((𝐵 ∈ (SubRing‘𝑅) ∧ 𝐶 ∈ (SubRing‘𝑆)) → (𝐶 ∈ (SubRing‘𝑅) ∧ 𝐶 ⊆ 𝐵)) |
| 6 | 1, 2, 5 | syl2anc 596 | . . . 4 ⊢ (𝜑 → (𝐶 ∈ (SubRing‘𝑅) ∧ 𝐶 ⊆ 𝐵)) |
| 7 | 6 | simpld 500 | . . 3 ⊢ (𝜑 → 𝐶 ∈ (SubRing‘𝑅)) |
| 8 | lsssra.w | . . . 4 ⊢ 𝑊 = ((subringAlg ‘𝑅)‘𝐶) | |
| 9 | 8 | sralmod 21474 | . . 3 ⊢ (𝐶 ∈ (SubRing‘𝑅) → 𝑊 ∈ LMod) |
| 10 | 7, 9 | syl 18 | . 2 ⊢ (𝜑 → 𝑊 ∈ LMod) |
| 11 | lsssra.a | . . . . 5 ⊢ 𝐴 = (Base‘𝑅) | |
| 12 | 11 | subrgss 20836 | . . . 4 ⊢ (𝐵 ∈ (SubRing‘𝑅) → 𝐵 ⊆ 𝐴) |
| 13 | 1, 12 | syl 18 | . . 3 ⊢ (𝜑 → 𝐵 ⊆ 𝐴) |
| 14 | 8 | a1i 11 | . . . . 5 ⊢ (𝜑 → 𝑊 = ((subringAlg ‘𝑅)‘𝐶)) |
| 15 | 6 | simprd 501 | . . . . . . 7 ⊢ (𝜑 → 𝐶 ⊆ 𝐵) |
| 16 | 15, 13 | sstrd 3922 | . . . . . 6 ⊢ (𝜑 → 𝐶 ⊆ 𝐴) |
| 17 | 16, 11 | sseqtrdi 3952 | . . . . 5 ⊢ (𝜑 → 𝐶 ⊆ (Base‘𝑅)) |
| 18 | 14, 17 | srabase 21464 | . . . 4 ⊢ (𝜑 → (Base‘𝑅) = (Base‘𝑊)) |
| 19 | 11, 18 | eqtrid 2810 | . . 3 ⊢ (𝜑 → 𝐴 = (Base‘𝑊)) |
| 20 | 13, 19 | sseqtrd 3948 | . 2 ⊢ (𝜑 → 𝐵 ⊆ (Base‘𝑊)) |
| 21 | 1 | elfvexd 6929 | . . . . 5 ⊢ (𝜑 → 𝑅 ∈ V) |
| 22 | 11, 3, 13, 15, 21 | resssra 34272 | . . . 4 ⊢ (𝜑 → ((subringAlg ‘𝑆)‘𝐶) = (((subringAlg ‘𝑅)‘𝐶) ↾s 𝐵)) |
| 23 | 8 | oveq1i 7437 | . . . 4 ⊢ (𝑊 ↾s 𝐵) = (((subringAlg ‘𝑅)‘𝐶) ↾s 𝐵) |
| 24 | 22, 23 | eqtr4di 2816 | . . 3 ⊢ (𝜑 → ((subringAlg ‘𝑆)‘𝐶) = (𝑊 ↾s 𝐵)) |
| 25 | eqid 2763 | . . . . 5 ⊢ ((subringAlg ‘𝑆)‘𝐶) = ((subringAlg ‘𝑆)‘𝐶) | |
| 26 | 25 | sralmod 21474 | . . . 4 ⊢ (𝐶 ∈ (SubRing‘𝑆) → ((subringAlg ‘𝑆)‘𝐶) ∈ LMod) |
| 27 | 2, 26 | syl 18 | . . 3 ⊢ (𝜑 → ((subringAlg ‘𝑆)‘𝐶) ∈ LMod) |
| 28 | 24, 27 | eqeltrrd 2864 | . 2 ⊢ (𝜑 → (𝑊 ↾s 𝐵) ∈ LMod) |
| 29 | eqid 2763 | . . . 4 ⊢ (𝑊 ↾s 𝐵) = (𝑊 ↾s 𝐵) | |
| 30 | eqid 2763 | . . . 4 ⊢ (Base‘𝑊) = (Base‘𝑊) | |
| 31 | eqid 2763 | . . . 4 ⊢ (LSubSp‘𝑊) = (LSubSp‘𝑊) | |
| 32 | 29, 30, 31 | islss3 21246 | . . 3 ⊢ (𝑊 ∈ LMod → (𝐵 ∈ (LSubSp‘𝑊) ↔ (𝐵 ⊆ (Base‘𝑊) ∧ (𝑊 ↾s 𝐵) ∈ LMod))) |
| 33 | 32 | biimpar 483 | . 2 ⊢ ((𝑊 ∈ LMod ∧ (𝐵 ⊆ (Base‘𝑊) ∧ (𝑊 ↾s 𝐵) ∈ LMod)) → 𝐵 ∈ (LSubSp‘𝑊)) |
| 34 | 10, 20, 28, 33 | syl12anc 850 | 1 ⊢ (𝜑 → 𝐵 ∈ (LSubSp‘𝑊)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1569 ∈ wcel 2146 Vcvv 3453 ⊆ wss 3899 ‘cfv 6546 (class class class)co 7427 Basecbs 17399 ↾s cress 17420 SubRingcsubrg 20833 LModclmod 21147 LSubSpclss 21218 subringAlg csra 21458 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1944 ax-6 2001 ax-7 2042 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2196 ax-12 2215 ax-ext 2735 ax-rep 5234 ax-sep 5251 ax-nul 5262 ax-pow 5330 ax-pr 5394 ax-un 7758 ax-cnex 11266 ax-resscn 11267 ax-1cn 11268 ax-icn 11269 ax-addcl 11270 ax-addrcl 11271 ax-mulcl 11272 ax-mulrcl 11273 ax-mulcom 11274 ax-addass 11275 ax-mulass 11276 ax-distr 11277 ax-i2m1 11278 ax-1ne0 11279 ax-1rid 11280 ax-rnegex 11281 ax-rrecex 11282 ax-cnre 11283 ax-pre-lttri 11284 ax-pre-lttrn 11285 ax-pre-ltadd 11286 ax-pre-mulgt0 11287 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2101 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-nel 3065 df-ral 3080 df-rex 3090 df-rmo 3368 df-reu 3369 df-rab 3416 df-v 3455 df-sbc 3742 df-csb 3851 df-ss 3900 df-pss 4016 df-dif 4049 df-in 4093 df-un 4153 df-nul 4281 df-if 4485 df-pw 4561 df-sn 4588 df-pr 4590 df-op 4838 df-uni 4870 df-iun 4955 df-br 5106 df-opab 5170 df-mpt 5189 df-tr 5215 df-id 5549 df-eprel 5554 df-po 5562 df-so 5563 df-fr 5607 df-we 5609 df-xp 5660 df-rel 5661 df-cnv 5662 df-co 5663 df-dm 5664 df-rn 5665 df-res 5666 df-ima 5667 df-pred 6310 df-ord 6371 df-on 6372 df-lim 6373 df-suc 6374 df-iota 6500 df-fun 6548 df-fn 6549 df-f 6550 df-f1 6551 df-fo 6552 df-f1o 6553 df-fv 6554 df-riota 7384 df-ov 7430 df-oprab 7431 df-mpo 7432 df-om 7885 df-1st 8008 df-2nd 8009 df-frecs 8310 df-wrecs 8341 df-recs 8390 df-rdg 8429 df-er 8728 df-en 8985 df-dom 8986 df-sdom 8987 df-pnf 11355 df-mnf 11356 df-xr 11357 df-ltxr 11358 df-le 11359 df-sub 11553 df-neg 11554 df-nn 12346 df-2 12415 df-3 12416 df-4 12417 df-5 12418 df-6 12419 df-7 12420 df-8 12421 df-sets 17354 df-slot 17372 df-ndx 17384 df-base 17400 df-ress 17421 df-plusg 17453 df-mulr 17454 df-sca 17456 df-vsca 17457 df-ip 17458 df-0g 17624 df-mgm 18828 df-sgrp 18920 df-mnd 18936 df-grp 19159 df-minusg 19160 df-sbg 19161 df-subg 19345 df-mgp 20373 df-ur 20420 df-ring 20473 df-subrg 20834 df-lmod 21149 df-lss 21219 df-sra 21460 |
| This theorem is used by: algextdeglem2 34403 |
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