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Mirrors > Home > MPE Home > Th. List > lspdisj2 | Structured version Visualization version GIF version |
Description: Unequal spans are disjoint (share only the zero vector). (Contributed by NM, 22-Mar-2015.) |
Ref | Expression |
---|---|
lspdisj2.v | ⊢ 𝑉 = (Base‘𝑊) |
lspdisj2.o | ⊢ 0 = (0g‘𝑊) |
lspdisj2.n | ⊢ 𝑁 = (LSpan‘𝑊) |
lspdisj2.w | ⊢ (𝜑 → 𝑊 ∈ LVec) |
lspdisj2.x | ⊢ (𝜑 → 𝑋 ∈ 𝑉) |
lspdisj2.y | ⊢ (𝜑 → 𝑌 ∈ 𝑉) |
lspdisj2.q | ⊢ (𝜑 → (𝑁‘{𝑋}) ≠ (𝑁‘{𝑌})) |
Ref | Expression |
---|---|
lspdisj2 | ⊢ (𝜑 → ((𝑁‘{𝑋}) ∩ (𝑁‘{𝑌})) = { 0 }) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | sneq 4327 | . . . . . 6 ⊢ (𝑋 = 0 → {𝑋} = { 0 }) | |
2 | 1 | fveq2d 6337 | . . . . 5 ⊢ (𝑋 = 0 → (𝑁‘{𝑋}) = (𝑁‘{ 0 })) |
3 | lspdisj2.w | . . . . . . 7 ⊢ (𝜑 → 𝑊 ∈ LVec) | |
4 | lveclmod 19319 | . . . . . . 7 ⊢ (𝑊 ∈ LVec → 𝑊 ∈ LMod) | |
5 | 3, 4 | syl 17 | . . . . . 6 ⊢ (𝜑 → 𝑊 ∈ LMod) |
6 | lspdisj2.o | . . . . . . 7 ⊢ 0 = (0g‘𝑊) | |
7 | lspdisj2.n | . . . . . . 7 ⊢ 𝑁 = (LSpan‘𝑊) | |
8 | 6, 7 | lspsn0 19221 | . . . . . 6 ⊢ (𝑊 ∈ LMod → (𝑁‘{ 0 }) = { 0 }) |
9 | 5, 8 | syl 17 | . . . . 5 ⊢ (𝜑 → (𝑁‘{ 0 }) = { 0 }) |
10 | 2, 9 | sylan9eqr 2827 | . . . 4 ⊢ ((𝜑 ∧ 𝑋 = 0 ) → (𝑁‘{𝑋}) = { 0 }) |
11 | 10 | ineq1d 3964 | . . 3 ⊢ ((𝜑 ∧ 𝑋 = 0 ) → ((𝑁‘{𝑋}) ∩ (𝑁‘{𝑌})) = ({ 0 } ∩ (𝑁‘{𝑌}))) |
12 | lspdisj2.y | . . . . . . 7 ⊢ (𝜑 → 𝑌 ∈ 𝑉) | |
13 | lspdisj2.v | . . . . . . . 8 ⊢ 𝑉 = (Base‘𝑊) | |
14 | eqid 2771 | . . . . . . . 8 ⊢ (LSubSp‘𝑊) = (LSubSp‘𝑊) | |
15 | 13, 14, 7 | lspsncl 19190 | . . . . . . 7 ⊢ ((𝑊 ∈ LMod ∧ 𝑌 ∈ 𝑉) → (𝑁‘{𝑌}) ∈ (LSubSp‘𝑊)) |
16 | 5, 12, 15 | syl2anc 573 | . . . . . 6 ⊢ (𝜑 → (𝑁‘{𝑌}) ∈ (LSubSp‘𝑊)) |
17 | 6, 14 | lss0ss 19159 | . . . . . 6 ⊢ ((𝑊 ∈ LMod ∧ (𝑁‘{𝑌}) ∈ (LSubSp‘𝑊)) → { 0 } ⊆ (𝑁‘{𝑌})) |
18 | 5, 16, 17 | syl2anc 573 | . . . . 5 ⊢ (𝜑 → { 0 } ⊆ (𝑁‘{𝑌})) |
19 | df-ss 3737 | . . . . 5 ⊢ ({ 0 } ⊆ (𝑁‘{𝑌}) ↔ ({ 0 } ∩ (𝑁‘{𝑌})) = { 0 }) | |
20 | 18, 19 | sylib 208 | . . . 4 ⊢ (𝜑 → ({ 0 } ∩ (𝑁‘{𝑌})) = { 0 }) |
21 | 20 | adantr 466 | . . 3 ⊢ ((𝜑 ∧ 𝑋 = 0 ) → ({ 0 } ∩ (𝑁‘{𝑌})) = { 0 }) |
22 | 11, 21 | eqtrd 2805 | . 2 ⊢ ((𝜑 ∧ 𝑋 = 0 ) → ((𝑁‘{𝑋}) ∩ (𝑁‘{𝑌})) = { 0 }) |
23 | 3 | adantr 466 | . . 3 ⊢ ((𝜑 ∧ 𝑋 ≠ 0 ) → 𝑊 ∈ LVec) |
24 | 16 | adantr 466 | . . 3 ⊢ ((𝜑 ∧ 𝑋 ≠ 0 ) → (𝑁‘{𝑌}) ∈ (LSubSp‘𝑊)) |
25 | lspdisj2.x | . . . 4 ⊢ (𝜑 → 𝑋 ∈ 𝑉) | |
26 | 25 | adantr 466 | . . 3 ⊢ ((𝜑 ∧ 𝑋 ≠ 0 ) → 𝑋 ∈ 𝑉) |
27 | lspdisj2.q | . . . . 5 ⊢ (𝜑 → (𝑁‘{𝑋}) ≠ (𝑁‘{𝑌})) | |
28 | 27 | adantr 466 | . . . 4 ⊢ ((𝜑 ∧ 𝑋 ≠ 0 ) → (𝑁‘{𝑋}) ≠ (𝑁‘{𝑌})) |
29 | 23 | adantr 466 | . . . . . . 7 ⊢ (((𝜑 ∧ 𝑋 ≠ 0 ) ∧ 𝑋 ∈ (𝑁‘{𝑌})) → 𝑊 ∈ LVec) |
30 | 12 | adantr 466 | . . . . . . . 8 ⊢ ((𝜑 ∧ 𝑋 ≠ 0 ) → 𝑌 ∈ 𝑉) |
31 | 30 | adantr 466 | . . . . . . 7 ⊢ (((𝜑 ∧ 𝑋 ≠ 0 ) ∧ 𝑋 ∈ (𝑁‘{𝑌})) → 𝑌 ∈ 𝑉) |
32 | simpr 471 | . . . . . . 7 ⊢ (((𝜑 ∧ 𝑋 ≠ 0 ) ∧ 𝑋 ∈ (𝑁‘{𝑌})) → 𝑋 ∈ (𝑁‘{𝑌})) | |
33 | simplr 752 | . . . . . . 7 ⊢ (((𝜑 ∧ 𝑋 ≠ 0 ) ∧ 𝑋 ∈ (𝑁‘{𝑌})) → 𝑋 ≠ 0 ) | |
34 | 13, 6, 7, 29, 31, 32, 33 | lspsneleq 19328 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑋 ≠ 0 ) ∧ 𝑋 ∈ (𝑁‘{𝑌})) → (𝑁‘{𝑋}) = (𝑁‘{𝑌})) |
35 | 34 | ex 397 | . . . . 5 ⊢ ((𝜑 ∧ 𝑋 ≠ 0 ) → (𝑋 ∈ (𝑁‘{𝑌}) → (𝑁‘{𝑋}) = (𝑁‘{𝑌}))) |
36 | 35 | necon3ad 2956 | . . . 4 ⊢ ((𝜑 ∧ 𝑋 ≠ 0 ) → ((𝑁‘{𝑋}) ≠ (𝑁‘{𝑌}) → ¬ 𝑋 ∈ (𝑁‘{𝑌}))) |
37 | 28, 36 | mpd 15 | . . 3 ⊢ ((𝜑 ∧ 𝑋 ≠ 0 ) → ¬ 𝑋 ∈ (𝑁‘{𝑌})) |
38 | 13, 6, 7, 14, 23, 24, 26, 37 | lspdisj 19338 | . 2 ⊢ ((𝜑 ∧ 𝑋 ≠ 0 ) → ((𝑁‘{𝑋}) ∩ (𝑁‘{𝑌})) = { 0 }) |
39 | 22, 38 | pm2.61dane 3030 | 1 ⊢ (𝜑 → ((𝑁‘{𝑋}) ∩ (𝑁‘{𝑌})) = { 0 }) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ∧ wa 382 = wceq 1631 ∈ wcel 2145 ≠ wne 2943 ∩ cin 3722 ⊆ wss 3723 {csn 4317 ‘cfv 6030 Basecbs 16064 0gc0g 16308 LModclmod 19073 LSubSpclss 19142 LSpanclspn 19184 LVecclvec 19315 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1870 ax-4 1885 ax-5 1991 ax-6 2057 ax-7 2093 ax-8 2147 ax-9 2154 ax-10 2174 ax-11 2190 ax-12 2203 ax-13 2408 ax-ext 2751 ax-rep 4905 ax-sep 4916 ax-nul 4924 ax-pow 4975 ax-pr 5035 ax-un 7100 ax-cnex 10198 ax-resscn 10199 ax-1cn 10200 ax-icn 10201 ax-addcl 10202 ax-addrcl 10203 ax-mulcl 10204 ax-mulrcl 10205 ax-mulcom 10206 ax-addass 10207 ax-mulass 10208 ax-distr 10209 ax-i2m1 10210 ax-1ne0 10211 ax-1rid 10212 ax-rnegex 10213 ax-rrecex 10214 ax-cnre 10215 ax-pre-lttri 10216 ax-pre-lttrn 10217 ax-pre-ltadd 10218 ax-pre-mulgt0 10219 |
This theorem depends on definitions: df-bi 197 df-an 383 df-or 837 df-3or 1072 df-3an 1073 df-tru 1634 df-ex 1853 df-nf 1858 df-sb 2050 df-eu 2622 df-mo 2623 df-clab 2758 df-cleq 2764 df-clel 2767 df-nfc 2902 df-ne 2944 df-nel 3047 df-ral 3066 df-rex 3067 df-reu 3068 df-rmo 3069 df-rab 3070 df-v 3353 df-sbc 3588 df-csb 3683 df-dif 3726 df-un 3728 df-in 3730 df-ss 3737 df-pss 3739 df-nul 4064 df-if 4227 df-pw 4300 df-sn 4318 df-pr 4320 df-tp 4322 df-op 4324 df-uni 4576 df-int 4613 df-iun 4657 df-br 4788 df-opab 4848 df-mpt 4865 df-tr 4888 df-id 5158 df-eprel 5163 df-po 5171 df-so 5172 df-fr 5209 df-we 5211 df-xp 5256 df-rel 5257 df-cnv 5258 df-co 5259 df-dm 5260 df-rn 5261 df-res 5262 df-ima 5263 df-pred 5822 df-ord 5868 df-on 5869 df-lim 5870 df-suc 5871 df-iota 5993 df-fun 6032 df-fn 6033 df-f 6034 df-f1 6035 df-fo 6036 df-f1o 6037 df-fv 6038 df-riota 6757 df-ov 6799 df-oprab 6800 df-mpt2 6801 df-om 7217 df-1st 7319 df-2nd 7320 df-tpos 7508 df-wrecs 7563 df-recs 7625 df-rdg 7663 df-er 7900 df-en 8114 df-dom 8115 df-sdom 8116 df-pnf 10282 df-mnf 10283 df-xr 10284 df-ltxr 10285 df-le 10286 df-sub 10474 df-neg 10475 df-nn 11227 df-2 11285 df-3 11286 df-ndx 16067 df-slot 16068 df-base 16070 df-sets 16071 df-ress 16072 df-plusg 16162 df-mulr 16163 df-0g 16310 df-mgm 17450 df-sgrp 17492 df-mnd 17503 df-grp 17633 df-minusg 17634 df-sbg 17635 df-mgp 18698 df-ur 18710 df-ring 18757 df-oppr 18831 df-dvdsr 18849 df-unit 18850 df-invr 18880 df-drng 18959 df-lmod 19075 df-lss 19143 df-lsp 19185 df-lvec 19316 |
This theorem is referenced by: lvecindp2 19353 hdmaprnlem9N 37667 |
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