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| Mirrors > Home > MPE Home > Th. List > Mathboxes > lduallkr3 | Structured version Visualization version GIF version | ||
| Description: The kernels of nonzero functionals are hyperplanes. (Contributed by NM, 22-Feb-2015.) | 
| Ref | Expression | 
|---|---|
| lduallkr3.h | ⊢ 𝐻 = (LSHyp‘𝑊) | 
| lduallkr3.f | ⊢ 𝐹 = (LFnl‘𝑊) | 
| lduallkr3.k | ⊢ 𝐾 = (LKer‘𝑊) | 
| lduallkr3.d | ⊢ 𝐷 = (LDual‘𝑊) | 
| lduallkr3.o | ⊢ 0 = (0g‘𝐷) | 
| lduallkr3.w | ⊢ (𝜑 → 𝑊 ∈ LVec) | 
| lduallkr3.g | ⊢ (𝜑 → 𝐺 ∈ 𝐹) | 
| Ref | Expression | 
|---|---|
| lduallkr3 | ⊢ (𝜑 → ((𝐾‘𝐺) ∈ 𝐻 ↔ 𝐺 ≠ 0 )) | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | eqid 2736 | . . 3 ⊢ (Base‘𝑊) = (Base‘𝑊) | |
| 2 | eqid 2736 | . . 3 ⊢ (Scalar‘𝑊) = (Scalar‘𝑊) | |
| 3 | eqid 2736 | . . 3 ⊢ (0g‘(Scalar‘𝑊)) = (0g‘(Scalar‘𝑊)) | |
| 4 | lduallkr3.h | . . 3 ⊢ 𝐻 = (LSHyp‘𝑊) | |
| 5 | lduallkr3.f | . . 3 ⊢ 𝐹 = (LFnl‘𝑊) | |
| 6 | lduallkr3.k | . . 3 ⊢ 𝐾 = (LKer‘𝑊) | |
| 7 | lduallkr3.w | . . 3 ⊢ (𝜑 → 𝑊 ∈ LVec) | |
| 8 | lduallkr3.g | . . 3 ⊢ (𝜑 → 𝐺 ∈ 𝐹) | |
| 9 | 1, 2, 3, 4, 5, 6, 7, 8 | lkrshp3 39108 | . 2 ⊢ (𝜑 → ((𝐾‘𝐺) ∈ 𝐻 ↔ 𝐺 ≠ ((Base‘𝑊) × {(0g‘(Scalar‘𝑊))}))) | 
| 10 | lduallkr3.d | . . . 4 ⊢ 𝐷 = (LDual‘𝑊) | |
| 11 | lduallkr3.o | . . . 4 ⊢ 0 = (0g‘𝐷) | |
| 12 | lveclmod 21106 | . . . . 5 ⊢ (𝑊 ∈ LVec → 𝑊 ∈ LMod) | |
| 13 | 7, 12 | syl 17 | . . . 4 ⊢ (𝜑 → 𝑊 ∈ LMod) | 
| 14 | 1, 2, 3, 10, 11, 13 | ldual0v 39152 | . . 3 ⊢ (𝜑 → 0 = ((Base‘𝑊) × {(0g‘(Scalar‘𝑊))})) | 
| 15 | 14 | neeq2d 3000 | . 2 ⊢ (𝜑 → (𝐺 ≠ 0 ↔ 𝐺 ≠ ((Base‘𝑊) × {(0g‘(Scalar‘𝑊))}))) | 
| 16 | 9, 15 | bitr4d 282 | 1 ⊢ (𝜑 → ((𝐾‘𝐺) ∈ 𝐻 ↔ 𝐺 ≠ 0 )) | 
| Colors of variables: wff setvar class | 
| Syntax hints: → wi 4 ↔ wb 206 = wceq 1539 ∈ wcel 2107 ≠ wne 2939 {csn 4625 × cxp 5682 ‘cfv 6560 Basecbs 17248 Scalarcsca 17301 0gc0g 17485 LModclmod 20859 LVecclvec 21102 LSHypclsh 38977 LFnlclfn 39059 LKerclk 39087 LDualcld 39125 | 
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1794 ax-4 1808 ax-5 1909 ax-6 1966 ax-7 2006 ax-8 2109 ax-9 2117 ax-10 2140 ax-11 2156 ax-12 2176 ax-ext 2707 ax-rep 5278 ax-sep 5295 ax-nul 5305 ax-pow 5364 ax-pr 5431 ax-un 7756 ax-cnex 11212 ax-resscn 11213 ax-1cn 11214 ax-icn 11215 ax-addcl 11216 ax-addrcl 11217 ax-mulcl 11218 ax-mulrcl 11219 ax-mulcom 11220 ax-addass 11221 ax-mulass 11222 ax-distr 11223 ax-i2m1 11224 ax-1ne0 11225 ax-1rid 11226 ax-rnegex 11227 ax-rrecex 11228 ax-cnre 11229 ax-pre-lttri 11230 ax-pre-lttrn 11231 ax-pre-ltadd 11232 ax-pre-mulgt0 11233 | 
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1779 df-nf 1783 df-sb 2064 df-mo 2539 df-eu 2568 df-clab 2714 df-cleq 2728 df-clel 2815 df-nfc 2891 df-ne 2940 df-nel 3046 df-ral 3061 df-rex 3070 df-rmo 3379 df-reu 3380 df-rab 3436 df-v 3481 df-sbc 3788 df-csb 3899 df-dif 3953 df-un 3955 df-in 3957 df-ss 3967 df-pss 3970 df-nul 4333 df-if 4525 df-pw 4601 df-sn 4626 df-pr 4628 df-tp 4630 df-op 4632 df-uni 4907 df-int 4946 df-iun 4992 df-br 5143 df-opab 5205 df-mpt 5225 df-tr 5259 df-id 5577 df-eprel 5583 df-po 5591 df-so 5592 df-fr 5636 df-we 5638 df-xp 5690 df-rel 5691 df-cnv 5692 df-co 5693 df-dm 5694 df-rn 5695 df-res 5696 df-ima 5697 df-pred 6320 df-ord 6386 df-on 6387 df-lim 6388 df-suc 6389 df-iota 6513 df-fun 6562 df-fn 6563 df-f 6564 df-f1 6565 df-fo 6566 df-f1o 6567 df-fv 6568 df-riota 7389 df-ov 7435 df-oprab 7436 df-mpo 7437 df-of 7698 df-om 7889 df-1st 8015 df-2nd 8016 df-tpos 8252 df-frecs 8307 df-wrecs 8338 df-recs 8412 df-rdg 8451 df-1o 8507 df-er 8746 df-map 8869 df-en 8987 df-dom 8988 df-sdom 8989 df-fin 8990 df-pnf 11298 df-mnf 11299 df-xr 11300 df-ltxr 11301 df-le 11302 df-sub 11495 df-neg 11496 df-nn 12268 df-2 12330 df-3 12331 df-4 12332 df-5 12333 df-6 12334 df-n0 12529 df-z 12616 df-uz 12880 df-fz 13549 df-struct 17185 df-sets 17202 df-slot 17220 df-ndx 17232 df-base 17249 df-ress 17276 df-plusg 17311 df-mulr 17312 df-sca 17314 df-vsca 17315 df-0g 17487 df-mgm 18654 df-sgrp 18733 df-mnd 18749 df-submnd 18798 df-grp 18955 df-minusg 18956 df-sbg 18957 df-subg 19142 df-cntz 19336 df-lsm 19655 df-cmn 19801 df-abl 19802 df-mgp 20139 df-rng 20151 df-ur 20180 df-ring 20233 df-oppr 20335 df-dvdsr 20358 df-unit 20359 df-invr 20389 df-drng 20732 df-lmod 20861 df-lss 20931 df-lsp 20971 df-lvec 21103 df-lshyp 38979 df-lfl 39060 df-lkr 39088 df-ldual 39126 | 
| This theorem is referenced by: lcfrlem25 41570 lcfrlem35 41580 | 
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