dochexmidlem7 - Mathbox for Norm Megill

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Theorem dochexmidlem7 41415

Description: Lemma for dochexmid 41417. Contradict dochexmidlem6 41414. (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 41059	. . . . . 6 ⊢ (𝜑 → 𝑈 ∈ LMod)
5		dochexmidlem1.s	. . . . . . 7 ⊢ 𝑆 = (LSubSp‘𝑈)
6	5	lsssssubg 20973	. . . . . 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 4009	. . . 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 38945	. . . . 5 ⊢ (𝜑 → 𝑝 ∈ 𝑆)
13	7, 12	sseldd 4009	. . . 4 ⊢ (𝜑 → 𝑝 ∈ (SubGrp‘𝑈))
14		dochexmidlem1.p	. . . . 5 ⊢ ⊕ = (LSSum‘𝑈)
15	14	lsmub2 19694	. . . 4 ⊢ ((𝑋 ∈ (SubGrp‘𝑈) ∧ 𝑝 ∈ (SubGrp‘𝑈)) → 𝑝 ⊆ (𝑋 ⊕ 𝑝))
16	9, 13, 15	syl2anc 583	. . 3 ⊢ (𝜑 → 𝑝 ⊆ (𝑋 ⊕ 𝑝))
17		dochexmidlem6.m	. . 3 ⊢ 𝑀 = (𝑋 ⊕ 𝑝)
18	16, 17	sseqtrrdi 4060	. 2 ⊢ (𝜑 → 𝑝 ⊆ 𝑀)
19		dochexmidlem6.pl	. . 3 ⊢ (𝜑 → ¬ 𝑝 ⊆ (𝑋 ⊕ ( ⊥ ‘𝑋)))
20		dochexmidlem1.v	. . . . . . . . 9 ⊢ 𝑉 = (Base‘𝑈)
21	20, 5	lssss 20951	. . . . . . . 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 41303	. . . . . . 7 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑋 ⊆ 𝑉) → ( ⊥ ‘𝑋) ∈ 𝑆)
25	3, 22, 24	syl2anc 583	. . . . . 6 ⊢ (𝜑 → ( ⊥ ‘𝑋) ∈ 𝑆)
26	7, 25	sseldd 4009	. . . . 5 ⊢ (𝜑 → ( ⊥ ‘𝑋) ∈ (SubGrp‘𝑈))
27	14	lsmub1 19693	. . . . 5 ⊢ ((𝑋 ∈ (SubGrp‘𝑈) ∧ ( ⊥ ‘𝑋) ∈ (SubGrp‘𝑈)) → 𝑋 ⊆ (𝑋 ⊕ ( ⊥ ‘𝑋)))
28	9, 26, 27	syl2anc 583	. . . 4 ⊢ (𝜑 → 𝑋 ⊆ (𝑋 ⊕ ( ⊥ ‘𝑋)))
29		sstr2 4015	. . . 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 4035	. . . 4 ⊢ (𝑀 = 𝑋 → (𝑝 ⊆ 𝑀 ↔ 𝑝 ⊆ 𝑋))
33	32	biimpcd 249	. . 3 ⊢ (𝑝 ⊆ 𝑀 → (𝑀 = 𝑋 → 𝑝 ⊆ 𝑋))
34	33	necon3bd 2960	. 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 1537 ∈ wcel 2108 ≠ wne 2946 ⊆ wss 3976 {csn 4648 ‘cfv 6568 (class class class)co 7443 Basecbs 17252 0_gc0g 17493 SubGrpcsubg 19154 LSSumclsm 19670 LModclmod 20874 LSubSpclss 20946 LSpanclspn 20986 LSAtomsclsa 38922 HLchlt 39298 LHypclh 39933 DVecHcdvh 41027 ocHcoch 41296

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1793 ax-4 1807 ax-5 1909 ax-6 1967 ax-7 2007 ax-8 2110 ax-9 2118 ax-10 2141 ax-11 2158 ax-12 2178 ax-ext 2711 ax-rep 5303 ax-sep 5317 ax-nul 5324 ax-pow 5383 ax-pr 5447 ax-un 7764 ax-cnex 11234 ax-resscn 11235 ax-1cn 11236 ax-icn 11237 ax-addcl 11238 ax-addrcl 11239 ax-mulcl 11240 ax-mulrcl 11241 ax-mulcom 11242 ax-addass 11243 ax-mulass 11244 ax-distr 11245 ax-i2m1 11246 ax-1ne0 11247 ax-1rid 11248 ax-rnegex 11249 ax-rrecex 11250 ax-cnre 11251 ax-pre-lttri 11252 ax-pre-lttrn 11253 ax-pre-ltadd 11254 ax-pre-mulgt0 11255 ax-riotaBAD 38901

This theorem depends on definitions: df-bi 207 df-an 396 df-or 847 df-3or 1088 df-3an 1089 df-tru 1540 df-fal 1550 df-ex 1778 df-nf 1782 df-sb 2065 df-mo 2543 df-eu 2572 df-clab 2718 df-cleq 2732 df-clel 2819 df-nfc 2895 df-ne 2947 df-nel 3053 df-ral 3068 df-rex 3077 df-rmo 3388 df-reu 3389 df-rab 3444 df-v 3490 df-sbc 3805 df-csb 3922 df-dif 3979 df-un 3981 df-in 3983 df-ss 3993 df-pss 3996 df-nul 4353 df-if 4549 df-pw 4624 df-sn 4649 df-pr 4651 df-tp 4653 df-op 4655 df-uni 4932 df-int 4971 df-iun 5017 df-iin 5018 df-br 5167 df-opab 5229 df-mpt 5250 df-tr 5284 df-id 5593 df-eprel 5599 df-po 5607 df-so 5608 df-fr 5650 df-we 5652 df-xp 5701 df-rel 5702 df-cnv 5703 df-co 5704 df-dm 5705 df-rn 5706 df-res 5707 df-ima 5708 df-pred 6327 df-ord 6393 df-on 6394 df-lim 6395 df-suc 6396 df-iota 6520 df-fun 6570 df-fn 6571 df-f 6572 df-f1 6573 df-fo 6574 df-f1o 6575 df-fv 6576 df-riota 7399 df-ov 7446 df-oprab 7447 df-mpo 7448 df-om 7898 df-1st 8024 df-2nd 8025 df-tpos 8261 df-undef 8308 df-frecs 8316 df-wrecs 8347 df-recs 8421 df-rdg 8460 df-1o 8516 df-er 8757 df-map 8880 df-en 8998 df-dom 8999 df-sdom 9000 df-fin 9001 df-pnf 11320 df-mnf 11321 df-xr 11322 df-ltxr 11323 df-le 11324 df-sub 11516 df-neg 11517 df-nn 12288 df-2 12350 df-3 12351 df-4 12352 df-5 12353 df-6 12354 df-n0 12548 df-z 12634 df-uz 12898 df-fz 13562 df-struct 17188 df-sets 17205 df-slot 17223 df-ndx 17235 df-base 17253 df-ress 17282 df-plusg 17318 df-mulr 17319 df-sca 17321 df-vsca 17322 df-0g 17495 df-proset 18359 df-poset 18377 df-plt 18394 df-lub 18410 df-glb 18411 df-join 18412 df-meet 18413 df-p0 18489 df-p1 18490 df-lat 18496 df-clat 18563 df-mgm 18672 df-sgrp 18751 df-mnd 18767 df-submnd 18813 df-grp 18970 df-minusg 18971 df-sbg 18972 df-subg 19157 df-cntz 19351 df-lsm 19672 df-cmn 19818 df-abl 19819 df-mgp 20156 df-rng 20174 df-ur 20203 df-ring 20256 df-oppr 20354 df-dvdsr 20377 df-unit 20378 df-invr 20408 df-dvr 20421 df-drng 20747 df-lmod 20876 df-lss 20947 df-lsp 20987 df-lvec 21119 df-lsatoms 38924 df-oposet 39124 df-ol 39126 df-oml 39127 df-covers 39214 df-ats 39215 df-atl 39246 df-cvlat 39270 df-hlat 39299 df-llines 39447 df-lplanes 39448 df-lvols 39449 df-lines 39450 df-psubsp 39452 df-pmap 39453 df-padd 39745 df-lhyp 39937 df-laut 39938 df-ldil 40053 df-ltrn 40054 df-trl 40108 df-tendo 40704 df-edring 40706 df-disoa 40978 df-dvech 41028 df-dib 41088 df-dic 41122 df-dih 41178 df-doch 41297

This theorem is referenced by: dochexmidlem8 41416

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