Mathbox for Stefan O'Rear |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > islssfgi | Structured version Visualization version GIF version |
Description: Finitely spanned subspaces are finitely generated. (Contributed by Stefan O'Rear, 24-Jan-2015.) |
Ref | Expression |
---|---|
islssfgi.n | ⊢ 𝑁 = (LSpan‘𝑊) |
islssfgi.v | ⊢ 𝑉 = (Base‘𝑊) |
islssfgi.x | ⊢ 𝑋 = (𝑊 ↾s (𝑁‘𝐵)) |
Ref | Expression |
---|---|
islssfgi | ⊢ ((𝑊 ∈ LMod ∧ 𝐵 ⊆ 𝑉 ∧ 𝐵 ∈ Fin) → 𝑋 ∈ LFinGen) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | islssfgi.v | . . . . . . . 8 ⊢ 𝑉 = (Base‘𝑊) | |
2 | fvex 6113 | . . . . . . . 8 ⊢ (Base‘𝑊) ∈ V | |
3 | 1, 2 | eqeltri 2684 | . . . . . . 7 ⊢ 𝑉 ∈ V |
4 | 3 | elpw2 4755 | . . . . . 6 ⊢ (𝐵 ∈ 𝒫 𝑉 ↔ 𝐵 ⊆ 𝑉) |
5 | 4 | biimpri 217 | . . . . 5 ⊢ (𝐵 ⊆ 𝑉 → 𝐵 ∈ 𝒫 𝑉) |
6 | 5 | 3ad2ant2 1076 | . . . 4 ⊢ ((𝑊 ∈ LMod ∧ 𝐵 ⊆ 𝑉 ∧ 𝐵 ∈ Fin) → 𝐵 ∈ 𝒫 𝑉) |
7 | simp3 1056 | . . . 4 ⊢ ((𝑊 ∈ LMod ∧ 𝐵 ⊆ 𝑉 ∧ 𝐵 ∈ Fin) → 𝐵 ∈ Fin) | |
8 | 6, 7 | elind 3760 | . . 3 ⊢ ((𝑊 ∈ LMod ∧ 𝐵 ⊆ 𝑉 ∧ 𝐵 ∈ Fin) → 𝐵 ∈ (𝒫 𝑉 ∩ Fin)) |
9 | eqid 2610 | . . 3 ⊢ (𝑁‘𝐵) = (𝑁‘𝐵) | |
10 | fveq2 6103 | . . . . 5 ⊢ (𝑎 = 𝐵 → (𝑁‘𝑎) = (𝑁‘𝐵)) | |
11 | 10 | eqeq1d 2612 | . . . 4 ⊢ (𝑎 = 𝐵 → ((𝑁‘𝑎) = (𝑁‘𝐵) ↔ (𝑁‘𝐵) = (𝑁‘𝐵))) |
12 | 11 | rspcev 3282 | . . 3 ⊢ ((𝐵 ∈ (𝒫 𝑉 ∩ Fin) ∧ (𝑁‘𝐵) = (𝑁‘𝐵)) → ∃𝑎 ∈ (𝒫 𝑉 ∩ Fin)(𝑁‘𝑎) = (𝑁‘𝐵)) |
13 | 8, 9, 12 | sylancl 693 | . 2 ⊢ ((𝑊 ∈ LMod ∧ 𝐵 ⊆ 𝑉 ∧ 𝐵 ∈ Fin) → ∃𝑎 ∈ (𝒫 𝑉 ∩ Fin)(𝑁‘𝑎) = (𝑁‘𝐵)) |
14 | simp1 1054 | . . 3 ⊢ ((𝑊 ∈ LMod ∧ 𝐵 ⊆ 𝑉 ∧ 𝐵 ∈ Fin) → 𝑊 ∈ LMod) | |
15 | eqid 2610 | . . . . 5 ⊢ (LSubSp‘𝑊) = (LSubSp‘𝑊) | |
16 | islssfgi.n | . . . . 5 ⊢ 𝑁 = (LSpan‘𝑊) | |
17 | 1, 15, 16 | lspcl 18797 | . . . 4 ⊢ ((𝑊 ∈ LMod ∧ 𝐵 ⊆ 𝑉) → (𝑁‘𝐵) ∈ (LSubSp‘𝑊)) |
18 | 17 | 3adant3 1074 | . . 3 ⊢ ((𝑊 ∈ LMod ∧ 𝐵 ⊆ 𝑉 ∧ 𝐵 ∈ Fin) → (𝑁‘𝐵) ∈ (LSubSp‘𝑊)) |
19 | islssfgi.x | . . . 4 ⊢ 𝑋 = (𝑊 ↾s (𝑁‘𝐵)) | |
20 | 19, 15, 16, 1 | islssfg2 36659 | . . 3 ⊢ ((𝑊 ∈ LMod ∧ (𝑁‘𝐵) ∈ (LSubSp‘𝑊)) → (𝑋 ∈ LFinGen ↔ ∃𝑎 ∈ (𝒫 𝑉 ∩ Fin)(𝑁‘𝑎) = (𝑁‘𝐵))) |
21 | 14, 18, 20 | syl2anc 691 | . 2 ⊢ ((𝑊 ∈ LMod ∧ 𝐵 ⊆ 𝑉 ∧ 𝐵 ∈ Fin) → (𝑋 ∈ LFinGen ↔ ∃𝑎 ∈ (𝒫 𝑉 ∩ Fin)(𝑁‘𝑎) = (𝑁‘𝐵))) |
22 | 13, 21 | mpbird 246 | 1 ⊢ ((𝑊 ∈ LMod ∧ 𝐵 ⊆ 𝑉 ∧ 𝐵 ∈ Fin) → 𝑋 ∈ LFinGen) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 195 ∧ w3a 1031 = wceq 1475 ∈ wcel 1977 ∃wrex 2897 Vcvv 3173 ∩ cin 3539 ⊆ wss 3540 𝒫 cpw 4108 ‘cfv 5804 (class class class)co 6549 Fincfn 7841 Basecbs 15695 ↾s cress 15696 LModclmod 18686 LSubSpclss 18753 LSpanclspn 18792 LFinGenclfig 36655 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-8 1979 ax-9 1986 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-rep 4699 ax-sep 4709 ax-nul 4717 ax-pow 4769 ax-pr 4833 ax-un 6847 ax-cnex 9871 ax-resscn 9872 ax-1cn 9873 ax-icn 9874 ax-addcl 9875 ax-addrcl 9876 ax-mulcl 9877 ax-mulrcl 9878 ax-mulcom 9879 ax-addass 9880 ax-mulass 9881 ax-distr 9882 ax-i2m1 9883 ax-1ne0 9884 ax-1rid 9885 ax-rnegex 9886 ax-rrecex 9887 ax-cnre 9888 ax-pre-lttri 9889 ax-pre-lttrn 9890 ax-pre-ltadd 9891 ax-pre-mulgt0 9892 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3or 1032 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-eu 2462 df-mo 2463 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ne 2782 df-nel 2783 df-ral 2901 df-rex 2902 df-reu 2903 df-rmo 2904 df-rab 2905 df-v 3175 df-sbc 3403 df-csb 3500 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-pss 3556 df-nul 3875 df-if 4037 df-pw 4110 df-sn 4126 df-pr 4128 df-tp 4130 df-op 4132 df-uni 4373 df-int 4411 df-iun 4457 df-br 4584 df-opab 4644 df-mpt 4645 df-tr 4681 df-eprel 4949 df-id 4953 df-po 4959 df-so 4960 df-fr 4997 df-we 4999 df-xp 5044 df-rel 5045 df-cnv 5046 df-co 5047 df-dm 5048 df-rn 5049 df-res 5050 df-ima 5051 df-pred 5597 df-ord 5643 df-on 5644 df-lim 5645 df-suc 5646 df-iota 5768 df-fun 5806 df-fn 5807 df-f 5808 df-f1 5809 df-fo 5810 df-f1o 5811 df-fv 5812 df-riota 6511 df-ov 6552 df-oprab 6553 df-mpt2 6554 df-om 6958 df-1st 7059 df-2nd 7060 df-wrecs 7294 df-recs 7355 df-rdg 7393 df-er 7629 df-en 7842 df-dom 7843 df-sdom 7844 df-pnf 9955 df-mnf 9956 df-xr 9957 df-ltxr 9958 df-le 9959 df-sub 10147 df-neg 10148 df-nn 10898 df-2 10956 df-3 10957 df-4 10958 df-5 10959 df-6 10960 df-ndx 15698 df-slot 15699 df-base 15700 df-sets 15701 df-ress 15702 df-plusg 15781 df-sca 15784 df-vsca 15785 df-0g 15925 df-mgm 17065 df-sgrp 17107 df-mnd 17118 df-grp 17248 df-minusg 17249 df-sbg 17250 df-subg 17414 df-mgp 18313 df-ur 18325 df-ring 18372 df-lmod 18688 df-lss 18754 df-lsp 18793 df-lfig 36656 |
This theorem is referenced by: lsmfgcl 36662 lmhmfgima 36672 lmhmfgsplit 36674 |
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