dvhdimlem - Mathbox for Norm Megill

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Theorem dvhdimlem 37252

Description: Lemma for dvh2dim 37253 and dvh3dim 37254. TODO: make this obsolete and use dvh4dimlem 37251 directly? (Contributed by NM, 24-Apr-2015.)

**Hypotheses**
Ref	Expression
dvh3dim.h	⊢ 𝐻 = (LHyp‘𝐾)
dvh3dim.u	⊢ 𝑈 = ((DVecH‘𝐾)‘𝑊)
dvh3dim.v	⊢ 𝑉 = (Base‘𝑈)
dvh3dim.n	⊢ 𝑁 = (LSpan‘𝑈)
dvh3dim.k	⊢ (𝜑 → (𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻))
dvh3dim.x	⊢ (𝜑 → 𝑋 ∈ 𝑉)
dvhdim.y	⊢ (𝜑 → 𝑌 ∈ 𝑉)
dvhdim.o	⊢ 0 = (0_g‘𝑈)
dvhdim.x	⊢ (𝜑 → 𝑋 ≠ 0 )
dvhdimlem.y	⊢ (𝜑 → 𝑌 ≠ 0 )

**Assertion**
Ref	Expression
dvhdimlem	⊢ (𝜑 → ∃𝑧 ∈ 𝑉 ¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑌}))

Distinct variable groups: 𝑧,𝑁 𝑧, 0 𝑧,𝑈 𝑧,𝑉 𝑧,𝑋 𝑧,𝑌 𝜑,𝑧 Allowed substitution hints: 𝐻(𝑧) 𝐾(𝑧) 𝑊(𝑧)

**Proof of Theorem dvhdimlem**
Step	Hyp	Ref	Expression
1		dvh3dim.h	. . 3 ⊢ 𝐻 = (LHyp‘𝐾)
2		dvh3dim.u	. . 3 ⊢ 𝑈 = ((DVecH‘𝐾)‘𝑊)
3		dvh3dim.v	. . 3 ⊢ 𝑉 = (Base‘𝑈)
4		dvh3dim.n	. . 3 ⊢ 𝑁 = (LSpan‘𝑈)
5		dvh3dim.k	. . 3 ⊢ (𝜑 → (𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻))
6		dvh3dim.x	. . 3 ⊢ (𝜑 → 𝑋 ∈ 𝑉)
7		dvhdim.y	. . 3 ⊢ (𝜑 → 𝑌 ∈ 𝑉)
8		dvhdim.o	. . 3 ⊢ 0 = (0_g‘𝑈)
9		dvhdim.x	. . 3 ⊢ (𝜑 → 𝑋 ≠ 0 )
10		dvhdimlem.y	. . 3 ⊢ (𝜑 → 𝑌 ≠ 0 )
11	1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 10	dvh4dimlem 37251	. 2 ⊢ (𝜑 → ∃𝑧 ∈ 𝑉 ¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑌, 𝑌}))
12	1, 2, 5	dvhlmod 36918	. . . . 5 ⊢ (𝜑 → 𝑈 ∈ LMod)
13		df-tp 4322	. . . . . 6 ⊢ {𝑋, 𝑌, 𝑌} = ({𝑋, 𝑌} ∪ {𝑌})
14		prssi 4488	. . . . . . . 8 ⊢ ((𝑋 ∈ 𝑉 ∧ 𝑌 ∈ 𝑉) → {𝑋, 𝑌} ⊆ 𝑉)
15	6, 7, 14	syl2anc 573	. . . . . . 7 ⊢ (𝜑 → {𝑋, 𝑌} ⊆ 𝑉)
16	7	snssd 4476	. . . . . . 7 ⊢ (𝜑 → {𝑌} ⊆ 𝑉)
17	15, 16	unssd 3940	. . . . . 6 ⊢ (𝜑 → ({𝑋, 𝑌} ∪ {𝑌}) ⊆ 𝑉)
18	13, 17	syl5eqss 3798	. . . . 5 ⊢ (𝜑 → {𝑋, 𝑌, 𝑌} ⊆ 𝑉)
19		ssun1 3927	. . . . . . 7 ⊢ {𝑋, 𝑌} ⊆ ({𝑋, 𝑌} ∪ {𝑌})
20	19, 13	sseqtr4i 3787	. . . . . 6 ⊢ {𝑋, 𝑌} ⊆ {𝑋, 𝑌, 𝑌}
21	20	a1i 11	. . . . 5 ⊢ (𝜑 → {𝑋, 𝑌} ⊆ {𝑋, 𝑌, 𝑌})
22	3, 4	lspss 19197	. . . . 5 ⊢ ((𝑈 ∈ LMod ∧ {𝑋, 𝑌, 𝑌} ⊆ 𝑉 ∧ {𝑋, 𝑌} ⊆ {𝑋, 𝑌, 𝑌}) → (𝑁‘{𝑋, 𝑌}) ⊆ (𝑁‘{𝑋, 𝑌, 𝑌}))
23	12, 18, 21, 22	syl3anc 1476	. . . 4 ⊢ (𝜑 → (𝑁‘{𝑋, 𝑌}) ⊆ (𝑁‘{𝑋, 𝑌, 𝑌}))
24	23	ssneld 3754	. . 3 ⊢ (𝜑 → (¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑌, 𝑌}) → ¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑌})))
25	24	reximdv 3164	. 2 ⊢ (𝜑 → (∃𝑧 ∈ 𝑉 ¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑌, 𝑌}) → ∃𝑧 ∈ 𝑉 ¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑌})))
26	11, 25	mpd 15	1 ⊢ (𝜑 → ∃𝑧 ∈ 𝑉 ¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑌}))

Colors of variables: wff setvar class

Syntax hints: ¬ wn 3 → wi 4 ∧ wa 382 = wceq 1631 ∈ wcel 2145 ≠ wne 2943 ∃wrex 3062 ∪ cun 3721 ⊆ wss 3723 {csn 4317 {cpr 4319 {ctp 4321 ‘cfv 6030 Basecbs 16064 0_gc0g 16308 LModclmod 19073 LSpanclspn 19184 HLchlt 35157 LHypclh 35791 DVecHcdvh 36886

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 ax-riotaBAD 34759

This theorem depends on definitions: df-bi 197 df-an 383 df-or 837 df-3or 1072 df-3an 1073 df-tru 1634 df-fal 1637 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-iin 4658 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-undef 7555 df-wrecs 7563 df-recs 7625 df-rdg 7663 df-1o 7717 df-oadd 7721 df-er 7900 df-map 8015 df-en 8114 df-dom 8115 df-sdom 8116 df-fin 8117 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-4 11287 df-5 11288 df-6 11289 df-n0 11500 df-z 11585 df-uz 11894 df-fz 12534 df-struct 16066 df-ndx 16067 df-slot 16068 df-base 16070 df-sets 16071 df-ress 16072 df-plusg 16162 df-mulr 16163 df-sca 16165 df-vsca 16166 df-0g 16310 df-preset 17136 df-poset 17154 df-plt 17166 df-lub 17182 df-glb 17183 df-join 17184 df-meet 17185 df-p0 17247 df-p1 17248 df-lat 17254 df-clat 17316 df-mgm 17450 df-sgrp 17492 df-mnd 17503 df-submnd 17544 df-grp 17633 df-minusg 17634 df-sbg 17635 df-subg 17799 df-cntz 17957 df-lsm 18258 df-cmn 18402 df-abl 18403 df-mgp 18698 df-ur 18710 df-ring 18757 df-oppr 18831 df-dvdsr 18849 df-unit 18850 df-invr 18880 df-dvr 18891 df-drng 18959 df-lmod 19075 df-lss 19143 df-lsp 19185 df-lvec 19316 df-lsatoms 34783 df-oposet 34983 df-ol 34985 df-oml 34986 df-covers 35073 df-ats 35074 df-atl 35105 df-cvlat 35129 df-hlat 35158 df-llines 35305 df-lplanes 35306 df-lvols 35307 df-lines 35308 df-psubsp 35310 df-pmap 35311 df-padd 35603 df-lhyp 35795 df-laut 35796 df-ldil 35911 df-ltrn 35912 df-trl 35967 df-tgrp 36551 df-tendo 36563 df-edring 36565 df-dveca 36811 df-disoa 36837 df-dvech 36887 df-dib 36947 df-dic 36981 df-dih 37037 df-doch 37156 df-djh 37203

This theorem is referenced by: dvh2dim 37253 dvh3dim 37254

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