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| Mirrors > Home > MPE Home > Th. List > Mathboxes > lnmlsslnm | Structured version Visualization version GIF version | ||
| Description: All submodules of a Noetherian module are Noetherian. (Contributed by Stefan O'Rear, 1-Jan-2015.) | 
| Ref | Expression | 
|---|---|
| lnmlssfg.s | ⊢ 𝑆 = (LSubSp‘𝑀) | 
| lnmlssfg.r | ⊢ 𝑅 = (𝑀 ↾s 𝑈) | 
| Ref | Expression | 
|---|---|
| lnmlsslnm | ⊢ ((𝑀 ∈ LNoeM ∧ 𝑈 ∈ 𝑆) → 𝑅 ∈ LNoeM) | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | lnmlmod 43091 | . . 3 ⊢ (𝑀 ∈ LNoeM → 𝑀 ∈ LMod) | |
| 2 | lnmlssfg.r | . . . 4 ⊢ 𝑅 = (𝑀 ↾s 𝑈) | |
| 3 | lnmlssfg.s | . . . 4 ⊢ 𝑆 = (LSubSp‘𝑀) | |
| 4 | 2, 3 | lsslmod 20958 | . . 3 ⊢ ((𝑀 ∈ LMod ∧ 𝑈 ∈ 𝑆) → 𝑅 ∈ LMod) | 
| 5 | 1, 4 | sylan 580 | . 2 ⊢ ((𝑀 ∈ LNoeM ∧ 𝑈 ∈ 𝑆) → 𝑅 ∈ LMod) | 
| 6 | 2 | oveq1i 7441 | . . . . 5 ⊢ (𝑅 ↾s 𝑎) = ((𝑀 ↾s 𝑈) ↾s 𝑎) | 
| 7 | simplr 769 | . . . . . 6 ⊢ (((𝑀 ∈ LNoeM ∧ 𝑈 ∈ 𝑆) ∧ 𝑎 ∈ (LSubSp‘𝑅)) → 𝑈 ∈ 𝑆) | |
| 8 | eqid 2737 | . . . . . . . . 9 ⊢ (Base‘𝑅) = (Base‘𝑅) | |
| 9 | eqid 2737 | . . . . . . . . 9 ⊢ (LSubSp‘𝑅) = (LSubSp‘𝑅) | |
| 10 | 8, 9 | lssss 20934 | . . . . . . . 8 ⊢ (𝑎 ∈ (LSubSp‘𝑅) → 𝑎 ⊆ (Base‘𝑅)) | 
| 11 | 10 | adantl 481 | . . . . . . 7 ⊢ (((𝑀 ∈ LNoeM ∧ 𝑈 ∈ 𝑆) ∧ 𝑎 ∈ (LSubSp‘𝑅)) → 𝑎 ⊆ (Base‘𝑅)) | 
| 12 | eqid 2737 | . . . . . . . . . 10 ⊢ (Base‘𝑀) = (Base‘𝑀) | |
| 13 | 12, 3 | lssss 20934 | . . . . . . . . 9 ⊢ (𝑈 ∈ 𝑆 → 𝑈 ⊆ (Base‘𝑀)) | 
| 14 | 2, 12 | ressbas2 17283 | . . . . . . . . 9 ⊢ (𝑈 ⊆ (Base‘𝑀) → 𝑈 = (Base‘𝑅)) | 
| 15 | 13, 14 | syl 17 | . . . . . . . 8 ⊢ (𝑈 ∈ 𝑆 → 𝑈 = (Base‘𝑅)) | 
| 16 | 15 | ad2antlr 727 | . . . . . . 7 ⊢ (((𝑀 ∈ LNoeM ∧ 𝑈 ∈ 𝑆) ∧ 𝑎 ∈ (LSubSp‘𝑅)) → 𝑈 = (Base‘𝑅)) | 
| 17 | 11, 16 | sseqtrrd 4021 | . . . . . 6 ⊢ (((𝑀 ∈ LNoeM ∧ 𝑈 ∈ 𝑆) ∧ 𝑎 ∈ (LSubSp‘𝑅)) → 𝑎 ⊆ 𝑈) | 
| 18 | ressabs 17294 | . . . . . 6 ⊢ ((𝑈 ∈ 𝑆 ∧ 𝑎 ⊆ 𝑈) → ((𝑀 ↾s 𝑈) ↾s 𝑎) = (𝑀 ↾s 𝑎)) | |
| 19 | 7, 17, 18 | syl2anc 584 | . . . . 5 ⊢ (((𝑀 ∈ LNoeM ∧ 𝑈 ∈ 𝑆) ∧ 𝑎 ∈ (LSubSp‘𝑅)) → ((𝑀 ↾s 𝑈) ↾s 𝑎) = (𝑀 ↾s 𝑎)) | 
| 20 | 6, 19 | eqtrid 2789 | . . . 4 ⊢ (((𝑀 ∈ LNoeM ∧ 𝑈 ∈ 𝑆) ∧ 𝑎 ∈ (LSubSp‘𝑅)) → (𝑅 ↾s 𝑎) = (𝑀 ↾s 𝑎)) | 
| 21 | simpll 767 | . . . . 5 ⊢ (((𝑀 ∈ LNoeM ∧ 𝑈 ∈ 𝑆) ∧ 𝑎 ∈ (LSubSp‘𝑅)) → 𝑀 ∈ LNoeM) | |
| 22 | 2, 3, 9 | lsslss 20959 | . . . . . . 7 ⊢ ((𝑀 ∈ LMod ∧ 𝑈 ∈ 𝑆) → (𝑎 ∈ (LSubSp‘𝑅) ↔ (𝑎 ∈ 𝑆 ∧ 𝑎 ⊆ 𝑈))) | 
| 23 | 1, 22 | sylan 580 | . . . . . 6 ⊢ ((𝑀 ∈ LNoeM ∧ 𝑈 ∈ 𝑆) → (𝑎 ∈ (LSubSp‘𝑅) ↔ (𝑎 ∈ 𝑆 ∧ 𝑎 ⊆ 𝑈))) | 
| 24 | 23 | simprbda 498 | . . . . 5 ⊢ (((𝑀 ∈ LNoeM ∧ 𝑈 ∈ 𝑆) ∧ 𝑎 ∈ (LSubSp‘𝑅)) → 𝑎 ∈ 𝑆) | 
| 25 | eqid 2737 | . . . . . 6 ⊢ (𝑀 ↾s 𝑎) = (𝑀 ↾s 𝑎) | |
| 26 | 3, 25 | lnmlssfg 43092 | . . . . 5 ⊢ ((𝑀 ∈ LNoeM ∧ 𝑎 ∈ 𝑆) → (𝑀 ↾s 𝑎) ∈ LFinGen) | 
| 27 | 21, 24, 26 | syl2anc 584 | . . . 4 ⊢ (((𝑀 ∈ LNoeM ∧ 𝑈 ∈ 𝑆) ∧ 𝑎 ∈ (LSubSp‘𝑅)) → (𝑀 ↾s 𝑎) ∈ LFinGen) | 
| 28 | 20, 27 | eqeltrd 2841 | . . 3 ⊢ (((𝑀 ∈ LNoeM ∧ 𝑈 ∈ 𝑆) ∧ 𝑎 ∈ (LSubSp‘𝑅)) → (𝑅 ↾s 𝑎) ∈ LFinGen) | 
| 29 | 28 | ralrimiva 3146 | . 2 ⊢ ((𝑀 ∈ LNoeM ∧ 𝑈 ∈ 𝑆) → ∀𝑎 ∈ (LSubSp‘𝑅)(𝑅 ↾s 𝑎) ∈ LFinGen) | 
| 30 | 9 | islnm 43089 | . 2 ⊢ (𝑅 ∈ LNoeM ↔ (𝑅 ∈ LMod ∧ ∀𝑎 ∈ (LSubSp‘𝑅)(𝑅 ↾s 𝑎) ∈ LFinGen)) | 
| 31 | 5, 29, 30 | sylanbrc 583 | 1 ⊢ ((𝑀 ∈ LNoeM ∧ 𝑈 ∈ 𝑆) → 𝑅 ∈ LNoeM) | 
| Colors of variables: wff setvar class | 
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 = wceq 1540 ∈ wcel 2108 ∀wral 3061 ⊆ wss 3951 ‘cfv 6561 (class class class)co 7431 Basecbs 17247 ↾s cress 17274 LModclmod 20858 LSubSpclss 20929 LFinGenclfig 43079 LNoeMclnm 43087 | 
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2007 ax-8 2110 ax-9 2118 ax-10 2141 ax-11 2157 ax-12 2177 ax-ext 2708 ax-sep 5296 ax-nul 5306 ax-pow 5365 ax-pr 5432 ax-un 7755 ax-cnex 11211 ax-resscn 11212 ax-1cn 11213 ax-icn 11214 ax-addcl 11215 ax-addrcl 11216 ax-mulcl 11217 ax-mulrcl 11218 ax-mulcom 11219 ax-addass 11220 ax-mulass 11221 ax-distr 11222 ax-i2m1 11223 ax-1ne0 11224 ax-1rid 11225 ax-rnegex 11226 ax-rrecex 11227 ax-cnre 11228 ax-pre-lttri 11229 ax-pre-lttrn 11230 ax-pre-ltadd 11231 ax-pre-mulgt0 11232 | 
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2065 df-mo 2540 df-eu 2569 df-clab 2715 df-cleq 2729 df-clel 2816 df-nfc 2892 df-ne 2941 df-nel 3047 df-ral 3062 df-rex 3071 df-rmo 3380 df-reu 3381 df-rab 3437 df-v 3482 df-sbc 3789 df-csb 3900 df-dif 3954 df-un 3956 df-in 3958 df-ss 3968 df-pss 3971 df-nul 4334 df-if 4526 df-pw 4602 df-sn 4627 df-pr 4629 df-op 4633 df-uni 4908 df-iun 4993 df-br 5144 df-opab 5206 df-mpt 5226 df-tr 5260 df-id 5578 df-eprel 5584 df-po 5592 df-so 5593 df-fr 5637 df-we 5639 df-xp 5691 df-rel 5692 df-cnv 5693 df-co 5694 df-dm 5695 df-rn 5696 df-res 5697 df-ima 5698 df-pred 6321 df-ord 6387 df-on 6388 df-lim 6389 df-suc 6390 df-iota 6514 df-fun 6563 df-fn 6564 df-f 6565 df-f1 6566 df-fo 6567 df-f1o 6568 df-fv 6569 df-riota 7388 df-ov 7434 df-oprab 7435 df-mpo 7436 df-om 7888 df-1st 8014 df-2nd 8015 df-frecs 8306 df-wrecs 8337 df-recs 8411 df-rdg 8450 df-er 8745 df-en 8986 df-dom 8987 df-sdom 8988 df-pnf 11297 df-mnf 11298 df-xr 11299 df-ltxr 11300 df-le 11301 df-sub 11494 df-neg 11495 df-nn 12267 df-2 12329 df-3 12330 df-4 12331 df-5 12332 df-6 12333 df-sets 17201 df-slot 17219 df-ndx 17231 df-base 17248 df-ress 17275 df-plusg 17310 df-sca 17313 df-vsca 17314 df-0g 17486 df-mgm 18653 df-sgrp 18732 df-mnd 18748 df-grp 18954 df-minusg 18955 df-sbg 18956 df-subg 19141 df-mgp 20138 df-ur 20179 df-ring 20232 df-lmod 20860 df-lss 20930 df-lnm 43088 | 
| This theorem is referenced by: (None) | 
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