| 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 20901 | . . . . . 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 21513 | . . 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 20875 | . . . 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 3923 | . . . . . 6 ⊢ (𝜑 → 𝐶 ⊆ 𝐴) |
| 17 | 16, 11 | sseqtrdi 3953 | . . . . 5 ⊢ (𝜑 → 𝐶 ⊆ (Base‘𝑅)) |
| 18 | 14, 17 | srabase 21503 | . . . 4 ⊢ (𝜑 → (Base‘𝑅) = (Base‘𝑊)) |
| 19 | 11, 18 | eqtrid 2810 | . . 3 ⊢ (𝜑 → 𝐴 = (Base‘𝑊)) |
| 20 | 13, 19 | sseqtrd 3949 | . 2 ⊢ (𝜑 → 𝐵 ⊆ (Base‘𝑊)) |
| 21 | 1 | elfvexd 6952 | . . . . 5 ⊢ (𝜑 → 𝑅 ∈ V) |
| 22 | 11, 3, 13, 15, 21 | resssra 34330 | . . . 4 ⊢ (𝜑 → ((subringAlg ‘𝑆)‘𝐶) = (((subringAlg ‘𝑅)‘𝐶) ↾s 𝐵)) |
| 23 | 8 | oveq1i 7461 | . . . 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 21513 | . . . 4 ⊢ (𝐶 ∈ (SubRing‘𝑆) → ((subringAlg ‘𝑆)‘𝐶) ∈ LMod) |
| 27 | 2, 26 | syl 18 | . . 3 ⊢ (𝜑 → ((subringAlg ‘𝑆)‘𝐶) ∈ LMod) |
| 28 | 24, 27 | eqeltrrd 2865 | . 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 21285 | . . 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 1570 ∈ wcel 2147 Vcvv 3454 ⊆ wss 3900 ‘cfv 6566 (class class class)co 7451 Basecbs 17431 ↾s cress 17452 SubRingcsubrg 20872 LModclmod 21186 LSubSpclss 21257 subringAlg csra 21497 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-rep 5238 ax-sep 5255 ax-nul 5266 ax-pow 5334 ax-pr 5398 ax-un 7783 ax-cnex 11295 ax-resscn 11296 ax-1cn 11297 ax-icn 11298 ax-addcl 11299 ax-addrcl 11300 ax-mulcl 11301 ax-mulrcl 11302 ax-mulcom 11303 ax-addass 11304 ax-mulass 11305 ax-distr 11306 ax-i2m1 11307 ax-1ne0 11308 ax-1rid 11309 ax-rnegex 11310 ax-rrecex 11311 ax-cnre 11312 ax-pre-lttri 11313 ax-pre-lttrn 11314 ax-pre-ltadd 11315 ax-pre-mulgt0 11316 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-nel 3066 df-ral 3081 df-rex 3091 df-rmo 3369 df-reu 3370 df-rab 3417 df-v 3456 df-sbc 3743 df-csb 3852 df-ss 3901 df-pss 4017 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-op 4841 df-uni 4873 df-iun 4958 df-br 5109 df-opab 5174 df-mpt 5193 df-tr 5219 df-id 5553 df-eprel 5558 df-po 5566 df-so 5567 df-fr 5611 df-we 5613 df-xp 5664 df-rel 5665 df-cnv 5666 df-co 5667 df-dm 5668 df-rn 5669 df-res 5670 df-ima 5671 df-pred 6330 df-ord 6391 df-on 6392 df-lim 6393 df-suc 6394 df-iota 6520 df-fun 6568 df-fn 6569 df-f 6570 df-f1 6571 df-fo 6572 df-f1o 6573 df-fv 6574 df-riota 7408 df-ov 7454 df-oprab 7455 df-mpo 7456 df-om 7912 df-1st 8035 df-2nd 8036 df-frecs 8337 df-wrecs 8368 df-recs 8417 df-rdg 8456 df-er 8755 df-en 9012 df-dom 9013 df-sdom 9014 df-pnf 11384 df-mnf 11385 df-xr 11386 df-ltxr 11387 df-le 11388 df-sub 11582 df-neg 11583 df-nn 12376 df-2 12445 df-3 12446 df-4 12447 df-5 12448 df-6 12449 df-7 12450 df-8 12451 df-sets 17386 df-slot 17404 df-ndx 17416 df-base 17432 df-ress 17453 df-plusg 17486 df-mulr 17487 df-sca 17489 df-vsca 17490 df-ip 17491 df-0g 17662 df-mgm 18866 df-sgrp 18958 df-mnd 18974 df-grp 19197 df-minusg 19198 df-sbg 19199 df-subg 19383 df-mgp 20412 df-ur 20459 df-ring 20512 df-subrg 20873 df-lmod 21188 df-lss 21258 df-sra 21499 |
| This theorem is used by: algextdeglem2 34461 |
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