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 | 1 | fvexi 6684 | . . . . . . 7 ⊢ 𝑉 ∈ V |
3 | 2 | elpw2 5248 | . . . . . 6 ⊢ (𝐵 ∈ 𝒫 𝑉 ↔ 𝐵 ⊆ 𝑉) |
4 | 3 | biimpri 230 | . . . . 5 ⊢ (𝐵 ⊆ 𝑉 → 𝐵 ∈ 𝒫 𝑉) |
5 | 4 | 3ad2ant2 1130 | . . . 4 ⊢ ((𝑊 ∈ LMod ∧ 𝐵 ⊆ 𝑉 ∧ 𝐵 ∈ Fin) → 𝐵 ∈ 𝒫 𝑉) |
6 | simp3 1134 | . . . 4 ⊢ ((𝑊 ∈ LMod ∧ 𝐵 ⊆ 𝑉 ∧ 𝐵 ∈ Fin) → 𝐵 ∈ Fin) | |
7 | 5, 6 | elind 4171 | . . 3 ⊢ ((𝑊 ∈ LMod ∧ 𝐵 ⊆ 𝑉 ∧ 𝐵 ∈ Fin) → 𝐵 ∈ (𝒫 𝑉 ∩ Fin)) |
8 | eqid 2821 | . . 3 ⊢ (𝑁‘𝐵) = (𝑁‘𝐵) | |
9 | fveqeq2 6679 | . . . 4 ⊢ (𝑎 = 𝐵 → ((𝑁‘𝑎) = (𝑁‘𝐵) ↔ (𝑁‘𝐵) = (𝑁‘𝐵))) | |
10 | 9 | rspcev 3623 | . . 3 ⊢ ((𝐵 ∈ (𝒫 𝑉 ∩ Fin) ∧ (𝑁‘𝐵) = (𝑁‘𝐵)) → ∃𝑎 ∈ (𝒫 𝑉 ∩ Fin)(𝑁‘𝑎) = (𝑁‘𝐵)) |
11 | 7, 8, 10 | sylancl 588 | . 2 ⊢ ((𝑊 ∈ LMod ∧ 𝐵 ⊆ 𝑉 ∧ 𝐵 ∈ Fin) → ∃𝑎 ∈ (𝒫 𝑉 ∩ Fin)(𝑁‘𝑎) = (𝑁‘𝐵)) |
12 | simp1 1132 | . . 3 ⊢ ((𝑊 ∈ LMod ∧ 𝐵 ⊆ 𝑉 ∧ 𝐵 ∈ Fin) → 𝑊 ∈ LMod) | |
13 | eqid 2821 | . . . . 5 ⊢ (LSubSp‘𝑊) = (LSubSp‘𝑊) | |
14 | islssfgi.n | . . . . 5 ⊢ 𝑁 = (LSpan‘𝑊) | |
15 | 1, 13, 14 | lspcl 19748 | . . . 4 ⊢ ((𝑊 ∈ LMod ∧ 𝐵 ⊆ 𝑉) → (𝑁‘𝐵) ∈ (LSubSp‘𝑊)) |
16 | 15 | 3adant3 1128 | . . 3 ⊢ ((𝑊 ∈ LMod ∧ 𝐵 ⊆ 𝑉 ∧ 𝐵 ∈ Fin) → (𝑁‘𝐵) ∈ (LSubSp‘𝑊)) |
17 | islssfgi.x | . . . 4 ⊢ 𝑋 = (𝑊 ↾s (𝑁‘𝐵)) | |
18 | 17, 13, 14, 1 | islssfg2 39691 | . . 3 ⊢ ((𝑊 ∈ LMod ∧ (𝑁‘𝐵) ∈ (LSubSp‘𝑊)) → (𝑋 ∈ LFinGen ↔ ∃𝑎 ∈ (𝒫 𝑉 ∩ Fin)(𝑁‘𝑎) = (𝑁‘𝐵))) |
19 | 12, 16, 18 | syl2anc 586 | . 2 ⊢ ((𝑊 ∈ LMod ∧ 𝐵 ⊆ 𝑉 ∧ 𝐵 ∈ Fin) → (𝑋 ∈ LFinGen ↔ ∃𝑎 ∈ (𝒫 𝑉 ∩ Fin)(𝑁‘𝑎) = (𝑁‘𝐵))) |
20 | 11, 19 | mpbird 259 | 1 ⊢ ((𝑊 ∈ LMod ∧ 𝐵 ⊆ 𝑉 ∧ 𝐵 ∈ Fin) → 𝑋 ∈ LFinGen) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 208 ∧ w3a 1083 = wceq 1537 ∈ wcel 2114 ∃wrex 3139 ∩ cin 3935 ⊆ wss 3936 𝒫 cpw 4539 ‘cfv 6355 (class class class)co 7156 Fincfn 8509 Basecbs 16483 ↾s cress 16484 LModclmod 19634 LSubSpclss 19703 LSpanclspn 19743 LFinGenclfig 39687 |
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 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2793 ax-rep 5190 ax-sep 5203 ax-nul 5210 ax-pow 5266 ax-pr 5330 ax-un 7461 ax-cnex 10593 ax-resscn 10594 ax-1cn 10595 ax-icn 10596 ax-addcl 10597 ax-addrcl 10598 ax-mulcl 10599 ax-mulrcl 10600 ax-mulcom 10601 ax-addass 10602 ax-mulass 10603 ax-distr 10604 ax-i2m1 10605 ax-1ne0 10606 ax-1rid 10607 ax-rnegex 10608 ax-rrecex 10609 ax-cnre 10610 ax-pre-lttri 10611 ax-pre-lttrn 10612 ax-pre-ltadd 10613 ax-pre-mulgt0 10614 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-nel 3124 df-ral 3143 df-rex 3144 df-reu 3145 df-rmo 3146 df-rab 3147 df-v 3496 df-sbc 3773 df-csb 3884 df-dif 3939 df-un 3941 df-in 3943 df-ss 3952 df-pss 3954 df-nul 4292 df-if 4468 df-pw 4541 df-sn 4568 df-pr 4570 df-tp 4572 df-op 4574 df-uni 4839 df-int 4877 df-iun 4921 df-br 5067 df-opab 5129 df-mpt 5147 df-tr 5173 df-id 5460 df-eprel 5465 df-po 5474 df-so 5475 df-fr 5514 df-we 5516 df-xp 5561 df-rel 5562 df-cnv 5563 df-co 5564 df-dm 5565 df-rn 5566 df-res 5567 df-ima 5568 df-pred 6148 df-ord 6194 df-on 6195 df-lim 6196 df-suc 6197 df-iota 6314 df-fun 6357 df-fn 6358 df-f 6359 df-f1 6360 df-fo 6361 df-f1o 6362 df-fv 6363 df-riota 7114 df-ov 7159 df-oprab 7160 df-mpo 7161 df-om 7581 df-1st 7689 df-2nd 7690 df-wrecs 7947 df-recs 8008 df-rdg 8046 df-er 8289 df-en 8510 df-dom 8511 df-sdom 8512 df-pnf 10677 df-mnf 10678 df-xr 10679 df-ltxr 10680 df-le 10681 df-sub 10872 df-neg 10873 df-nn 11639 df-2 11701 df-3 11702 df-4 11703 df-5 11704 df-6 11705 df-ndx 16486 df-slot 16487 df-base 16489 df-sets 16490 df-ress 16491 df-plusg 16578 df-sca 16581 df-vsca 16582 df-0g 16715 df-mgm 17852 df-sgrp 17901 df-mnd 17912 df-grp 18106 df-minusg 18107 df-sbg 18108 df-subg 18276 df-mgp 19240 df-ur 19252 df-ring 19299 df-lmod 19636 df-lss 19704 df-lsp 19744 df-lfig 39688 |
This theorem is referenced by: lsmfgcl 39694 lmhmfgima 39704 lmhmfgsplit 39706 |
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