dochexmidlem7 - Mathbox for Norm Megill

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Theorem dochexmidlem7 41912

Description: Lemma for dochexmid 41914. Contradict dochexmidlem6 41911. (Contributed by NM, 15-Jan-2015.)

**Hypotheses**
Ref	Expression
dochexmidlem1.h	⊢ 𝐻 = (LHyp‘𝐾)
dochexmidlem1.o	⊢ ⊥ = ((ocH‘𝐾)‘𝑊)
dochexmidlem1.u	⊢ 𝑈 = ((DVecH‘𝐾)‘𝑊)
dochexmidlem1.v	⊢ 𝑉 = (Base‘𝑈)
dochexmidlem1.s	⊢ 𝑆 = (LSubSp‘𝑈)
dochexmidlem1.n	⊢ 𝑁 = (LSpan‘𝑈)
dochexmidlem1.p	⊢ ⊕ = (LSSum‘𝑈)
dochexmidlem1.a	⊢ 𝐴 = (LSAtoms‘𝑈)
dochexmidlem1.k	⊢ (𝜑 → (𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻))
dochexmidlem1.x	⊢ (𝜑 → 𝑋 ∈ 𝑆)
dochexmidlem6.pp	⊢ (𝜑 → 𝑝 ∈ 𝐴)
dochexmidlem6.z	⊢ 0 = (0_g‘𝑈)
dochexmidlem6.m	⊢ 𝑀 = (𝑋 ⊕ 𝑝)
dochexmidlem6.xn	⊢ (𝜑 → 𝑋 ≠ { 0 })
dochexmidlem6.c	⊢ (𝜑 → ( ⊥ ‘( ⊥ ‘𝑋)) = 𝑋)
dochexmidlem6.pl	⊢ (𝜑 → ¬ 𝑝 ⊆ (𝑋 ⊕ ( ⊥ ‘𝑋)))

**Assertion**
Ref	Expression
dochexmidlem7	⊢ (𝜑 → 𝑀 ≠ 𝑋)

**Proof of Theorem dochexmidlem7**
Step	Hyp	Ref	Expression
1		dochexmidlem1.h	. . . . . . 7 ⊢ 𝐻 = (LHyp‘𝐾)
2		dochexmidlem1.u	. . . . . . 7 ⊢ 𝑈 = ((DVecH‘𝐾)‘𝑊)
3		dochexmidlem1.k	. . . . . . 7 ⊢ (𝜑 → (𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻))
4	1, 2, 3	dvhlmod 41556	. . . . . 6 ⊢ (𝜑 → 𝑈 ∈ LMod)
5		dochexmidlem1.s	. . . . . . 7 ⊢ 𝑆 = (LSubSp‘𝑈)
6	5	lsssssubg 20953	. . . . . 6 ⊢ (𝑈 ∈ LMod → 𝑆 ⊆ (SubGrp‘𝑈))
7	4, 6	syl 17	. . . . 5 ⊢ (𝜑 → 𝑆 ⊆ (SubGrp‘𝑈))
8		dochexmidlem1.x	. . . . 5 ⊢ (𝜑 → 𝑋 ∈ 𝑆)
9	7, 8	sseldd 3922	. . . 4 ⊢ (𝜑 → 𝑋 ∈ (SubGrp‘𝑈))
10		dochexmidlem1.a	. . . . . 6 ⊢ 𝐴 = (LSAtoms‘𝑈)
11		dochexmidlem6.pp	. . . . . 6 ⊢ (𝜑 → 𝑝 ∈ 𝐴)
12	5, 10, 4, 11	lsatlssel 39443	. . . . 5 ⊢ (𝜑 → 𝑝 ∈ 𝑆)
13	7, 12	sseldd 3922	. . . 4 ⊢ (𝜑 → 𝑝 ∈ (SubGrp‘𝑈))
14		dochexmidlem1.p	. . . . 5 ⊢ ⊕ = (LSSum‘𝑈)
15	14	lsmub2 19633	. . . 4 ⊢ ((𝑋 ∈ (SubGrp‘𝑈) ∧ 𝑝 ∈ (SubGrp‘𝑈)) → 𝑝 ⊆ (𝑋 ⊕ 𝑝))
16	9, 13, 15	syl2anc 585	. . 3 ⊢ (𝜑 → 𝑝 ⊆ (𝑋 ⊕ 𝑝))
17		dochexmidlem6.m	. . 3 ⊢ 𝑀 = (𝑋 ⊕ 𝑝)
18	16, 17	sseqtrrdi 3963	. 2 ⊢ (𝜑 → 𝑝 ⊆ 𝑀)
19		dochexmidlem6.pl	. . 3 ⊢ (𝜑 → ¬ 𝑝 ⊆ (𝑋 ⊕ ( ⊥ ‘𝑋)))
20		dochexmidlem1.v	. . . . . . . . 9 ⊢ 𝑉 = (Base‘𝑈)
21	20, 5	lssss 20931	. . . . . . . 8 ⊢ (𝑋 ∈ 𝑆 → 𝑋 ⊆ 𝑉)
22	8, 21	syl 17	. . . . . . 7 ⊢ (𝜑 → 𝑋 ⊆ 𝑉)
23		dochexmidlem1.o	. . . . . . . 8 ⊢ ⊥ = ((ocH‘𝐾)‘𝑊)
24	1, 2, 20, 5, 23	dochlss 41800	. . . . . . 7 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑋 ⊆ 𝑉) → ( ⊥ ‘𝑋) ∈ 𝑆)
25	3, 22, 24	syl2anc 585	. . . . . 6 ⊢ (𝜑 → ( ⊥ ‘𝑋) ∈ 𝑆)
26	7, 25	sseldd 3922	. . . . 5 ⊢ (𝜑 → ( ⊥ ‘𝑋) ∈ (SubGrp‘𝑈))
27	14	lsmub1 19632	. . . . 5 ⊢ ((𝑋 ∈ (SubGrp‘𝑈) ∧ ( ⊥ ‘𝑋) ∈ (SubGrp‘𝑈)) → 𝑋 ⊆ (𝑋 ⊕ ( ⊥ ‘𝑋)))
28	9, 26, 27	syl2anc 585	. . . 4 ⊢ (𝜑 → 𝑋 ⊆ (𝑋 ⊕ ( ⊥ ‘𝑋)))
29		sstr2 3928	. . . 4 ⊢ (𝑝 ⊆ 𝑋 → (𝑋 ⊆ (𝑋 ⊕ ( ⊥ ‘𝑋)) → 𝑝 ⊆ (𝑋 ⊕ ( ⊥ ‘𝑋))))
30	28, 29	syl5com 31	. . 3 ⊢ (𝜑 → (𝑝 ⊆ 𝑋 → 𝑝 ⊆ (𝑋 ⊕ ( ⊥ ‘𝑋))))
31	19, 30	mtod 198	. 2 ⊢ (𝜑 → ¬ 𝑝 ⊆ 𝑋)
32		sseq2 3948	. . . 4 ⊢ (𝑀 = 𝑋 → (𝑝 ⊆ 𝑀 ↔ 𝑝 ⊆ 𝑋))
33	32	biimpcd 249	. . 3 ⊢ (𝑝 ⊆ 𝑀 → (𝑀 = 𝑋 → 𝑝 ⊆ 𝑋))
34	33	necon3bd 2946	. 2 ⊢ (𝑝 ⊆ 𝑀 → (¬ 𝑝 ⊆ 𝑋 → 𝑀 ≠ 𝑋))
35	18, 31, 34	sylc 65	1 ⊢ (𝜑 → 𝑀 ≠ 𝑋)

Colors of variables: wff setvar class

Syntax hints: ¬ wn 3 → wi 4 ∧ wa 395 = wceq 1542 ∈ wcel 2114 ≠ wne 2932 ⊆ wss 3889 {csn 4567 ‘cfv 6498 (class class class)co 7367 Basecbs 17179 0_gc0g 17402 SubGrpcsubg 19096 LSSumclsm 19609 LModclmod 20855 LSubSpclss 20926 LSpanclspn 20966 LSAtomsclsa 39420 HLchlt 39796 LHypclh 40430 DVecHcdvh 41524 ocHcoch 41793

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2708 ax-rep 5212 ax-sep 5231 ax-nul 5241 ax-pow 5307 ax-pr 5375 ax-un 7689 ax-cnex 11094 ax-resscn 11095 ax-1cn 11096 ax-icn 11097 ax-addcl 11098 ax-addrcl 11099 ax-mulcl 11100 ax-mulrcl 11101 ax-mulcom 11102 ax-addass 11103 ax-mulass 11104 ax-distr 11105 ax-i2m1 11106 ax-1ne0 11107 ax-1rid 11108 ax-rnegex 11109 ax-rrecex 11110 ax-cnre 11111 ax-pre-lttri 11112 ax-pre-lttrn 11113 ax-pre-ltadd 11114 ax-pre-mulgt0 11115 ax-riotaBAD 39399

This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-nel 3037 df-ral 3052 df-rex 3062 df-rmo 3342 df-reu 3343 df-rab 3390 df-v 3431 df-sbc 3729 df-csb 3838 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-pss 3909 df-nul 4274 df-if 4467 df-pw 4543 df-sn 4568 df-pr 4570 df-tp 4572 df-op 4574 df-uni 4851 df-int 4890 df-iun 4935 df-iin 4936 df-br 5086 df-opab 5148 df-mpt 5167 df-tr 5193 df-id 5526 df-eprel 5531 df-po 5539 df-so 5540 df-fr 5584 df-we 5586 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-pred 6265 df-ord 6326 df-on 6327 df-lim 6328 df-suc 6329 df-iota 6454 df-fun 6500 df-fn 6501 df-f 6502 df-f1 6503 df-fo 6504 df-f1o 6505 df-fv 6506 df-riota 7324 df-ov 7370 df-oprab 7371 df-mpo 7372 df-om 7818 df-1st 7942 df-2nd 7943 df-tpos 8176 df-undef 8223 df-frecs 8231 df-wrecs 8262 df-recs 8311 df-rdg 8349 df-1o 8405 df-er 8643 df-map 8775 df-en 8894 df-dom 8895 df-sdom 8896 df-fin 8897 df-pnf 11181 df-mnf 11182 df-xr 11183 df-ltxr 11184 df-le 11185 df-sub 11379 df-neg 11380 df-nn 12175 df-2 12244 df-3 12245 df-4 12246 df-5 12247 df-6 12248 df-n0 12438 df-z 12525 df-uz 12789 df-fz 13462 df-struct 17117 df-sets 17134 df-slot 17152 df-ndx 17164 df-base 17180 df-ress 17201 df-plusg 17233 df-mulr 17234 df-sca 17236 df-vsca 17237 df-0g 17404 df-proset 18260 df-poset 18279 df-plt 18294 df-lub 18310 df-glb 18311 df-join 18312 df-meet 18313 df-p0 18389 df-p1 18390 df-lat 18398 df-clat 18465 df-mgm 18608 df-sgrp 18687 df-mnd 18703 df-submnd 18752 df-grp 18912 df-minusg 18913 df-sbg 18914 df-subg 19099 df-cntz 19292 df-lsm 19611 df-cmn 19757 df-abl 19758 df-mgp 20122 df-rng 20134 df-ur 20163 df-ring 20216 df-oppr 20317 df-dvdsr 20337 df-unit 20338 df-invr 20368 df-dvr 20381 df-drng 20708 df-lmod 20857 df-lss 20927 df-lsp 20967 df-lvec 21098 df-lsatoms 39422 df-oposet 39622 df-ol 39624 df-oml 39625 df-covers 39712 df-ats 39713 df-atl 39744 df-cvlat 39768 df-hlat 39797 df-llines 39944 df-lplanes 39945 df-lvols 39946 df-lines 39947 df-psubsp 39949 df-pmap 39950 df-padd 40242 df-lhyp 40434 df-laut 40435 df-ldil 40550 df-ltrn 40551 df-trl 40605 df-tendo 41201 df-edring 41203 df-disoa 41475 df-dvech 41525 df-dib 41585 df-dic 41619 df-dih 41675 df-doch 41794

This theorem is referenced by: dochexmidlem8 41913

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