islshpsm - Mathbox for Norm Megill

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Theorem islshpsm 38452

Description: Hyperplane properties expressed with subspace sum. (Contributed by NM, 3-Jul-2014.)

**Hypotheses**
Ref	Expression
islshpsm.v	⊢ 𝑉 = (Base‘𝑊)
islshpsm.n	⊢ 𝑁 = (LSpan‘𝑊)
islshpsm.s	⊢ 𝑆 = (LSubSp‘𝑊)
islshpsm.p	⊢ ⊕ = (LSSum‘𝑊)
islshpsm.h	⊢ 𝐻 = (LSHyp‘𝑊)
islshpsm.w	⊢ (𝜑 → 𝑊 ∈ LMod)

**Assertion**
Ref	Expression
islshpsm	⊢ (𝜑 → (𝑈 ∈ 𝐻 ↔ (𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ∧ ∃𝑣 ∈ 𝑉 (𝑈 ⊕ (𝑁‘{𝑣})) = 𝑉)))

Distinct variable groups: 𝑣,𝑆 𝑣,𝑈 𝑣,𝑉 𝑣,𝑊 𝜑,𝑣 Allowed substitution hints: ⊕ (𝑣) 𝐻(𝑣) 𝑁(𝑣)

**Proof of Theorem islshpsm**
Step	Hyp	Ref	Expression
1		islshpsm.w	. . 3 ⊢ (𝜑 → 𝑊 ∈ LMod)
2		islshpsm.v	. . . 4 ⊢ 𝑉 = (Base‘𝑊)
3		islshpsm.n	. . . 4 ⊢ 𝑁 = (LSpan‘𝑊)
4		islshpsm.s	. . . 4 ⊢ 𝑆 = (LSubSp‘𝑊)
5		islshpsm.h	. . . 4 ⊢ 𝐻 = (LSHyp‘𝑊)
6	2, 3, 4, 5	islshp 38451	. . 3 ⊢ (𝑊 ∈ LMod → (𝑈 ∈ 𝐻 ↔ (𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ∧ ∃𝑣 ∈ 𝑉 (𝑁‘(𝑈 ∪ {𝑣})) = 𝑉)))
7	1, 6	syl 17	. 2 ⊢ (𝜑 → (𝑈 ∈ 𝐻 ↔ (𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ∧ ∃𝑣 ∈ 𝑉 (𝑁‘(𝑈 ∪ {𝑣})) = 𝑉)))
8	1	ad2antrr 725	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ (𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉)) ∧ 𝑣 ∈ 𝑉) → 𝑊 ∈ LMod)
9		simplrl 776	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ (𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉)) ∧ 𝑣 ∈ 𝑉) → 𝑈 ∈ 𝑆)
10	4, 3	lspid 20865	. . . . . . . . . . 11 ⊢ ((𝑊 ∈ LMod ∧ 𝑈 ∈ 𝑆) → (𝑁‘𝑈) = 𝑈)
11	8, 9, 10	syl2anc 583	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉)) ∧ 𝑣 ∈ 𝑉) → (𝑁‘𝑈) = 𝑈)
12	11	uneq1d 4161	. . . . . . . . 9 ⊢ (((𝜑 ∧ (𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉)) ∧ 𝑣 ∈ 𝑉) → ((𝑁‘𝑈) ∪ (𝑁‘{𝑣})) = (𝑈 ∪ (𝑁‘{𝑣})))
13	12	fveq2d 6901	. . . . . . . 8 ⊢ (((𝜑 ∧ (𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉)) ∧ 𝑣 ∈ 𝑉) → (𝑁‘((𝑁‘𝑈) ∪ (𝑁‘{𝑣}))) = (𝑁‘(𝑈 ∪ (𝑁‘{𝑣}))))
14	2, 4	lssss 20819	. . . . . . . . . 10 ⊢ (𝑈 ∈ 𝑆 → 𝑈 ⊆ 𝑉)
15	9, 14	syl 17	. . . . . . . . 9 ⊢ (((𝜑 ∧ (𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉)) ∧ 𝑣 ∈ 𝑉) → 𝑈 ⊆ 𝑉)
16		snssi 4812	. . . . . . . . . 10 ⊢ (𝑣 ∈ 𝑉 → {𝑣} ⊆ 𝑉)
17	16	adantl 481	. . . . . . . . 9 ⊢ (((𝜑 ∧ (𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉)) ∧ 𝑣 ∈ 𝑉) → {𝑣} ⊆ 𝑉)
18	2, 3	lspun 20870	. . . . . . . . 9 ⊢ ((𝑊 ∈ LMod ∧ 𝑈 ⊆ 𝑉 ∧ {𝑣} ⊆ 𝑉) → (𝑁‘(𝑈 ∪ {𝑣})) = (𝑁‘((𝑁‘𝑈) ∪ (𝑁‘{𝑣}))))
19	8, 15, 17, 18	syl3anc 1369	. . . . . . . 8 ⊢ (((𝜑 ∧ (𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉)) ∧ 𝑣 ∈ 𝑉) → (𝑁‘(𝑈 ∪ {𝑣})) = (𝑁‘((𝑁‘𝑈) ∪ (𝑁‘{𝑣}))))
20	2, 4, 3	lspcl 20859	. . . . . . . . . 10 ⊢ ((𝑊 ∈ LMod ∧ {𝑣} ⊆ 𝑉) → (𝑁‘{𝑣}) ∈ 𝑆)
21	8, 17, 20	syl2anc 583	. . . . . . . . 9 ⊢ (((𝜑 ∧ (𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉)) ∧ 𝑣 ∈ 𝑉) → (𝑁‘{𝑣}) ∈ 𝑆)
22		islshpsm.p	. . . . . . . . . 10 ⊢ ⊕ = (LSSum‘𝑊)
23	4, 3, 22	lsmsp 20970	. . . . . . . . 9 ⊢ ((𝑊 ∈ LMod ∧ 𝑈 ∈ 𝑆 ∧ (𝑁‘{𝑣}) ∈ 𝑆) → (𝑈 ⊕ (𝑁‘{𝑣})) = (𝑁‘(𝑈 ∪ (𝑁‘{𝑣}))))
24	8, 9, 21, 23	syl3anc 1369	. . . . . . . 8 ⊢ (((𝜑 ∧ (𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉)) ∧ 𝑣 ∈ 𝑉) → (𝑈 ⊕ (𝑁‘{𝑣})) = (𝑁‘(𝑈 ∪ (𝑁‘{𝑣}))))
25	13, 19, 24	3eqtr4rd 2779	. . . . . . 7 ⊢ (((𝜑 ∧ (𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉)) ∧ 𝑣 ∈ 𝑉) → (𝑈 ⊕ (𝑁‘{𝑣})) = (𝑁‘(𝑈 ∪ {𝑣})))
26	25	eqeq1d 2730	. . . . . 6 ⊢ (((𝜑 ∧ (𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉)) ∧ 𝑣 ∈ 𝑉) → ((𝑈 ⊕ (𝑁‘{𝑣})) = 𝑉 ↔ (𝑁‘(𝑈 ∪ {𝑣})) = 𝑉))
27	26	rexbidva 3173	. . . . 5 ⊢ ((𝜑 ∧ (𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉)) → (∃𝑣 ∈ 𝑉 (𝑈 ⊕ (𝑁‘{𝑣})) = 𝑉 ↔ ∃𝑣 ∈ 𝑉 (𝑁‘(𝑈 ∪ {𝑣})) = 𝑉))
28	27	pm5.32da 578	. . . 4 ⊢ (𝜑 → (((𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉) ∧ ∃𝑣 ∈ 𝑉 (𝑈 ⊕ (𝑁‘{𝑣})) = 𝑉) ↔ ((𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉) ∧ ∃𝑣 ∈ 𝑉 (𝑁‘(𝑈 ∪ {𝑣})) = 𝑉)))
29	28	bicomd 222	. . 3 ⊢ (𝜑 → (((𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉) ∧ ∃𝑣 ∈ 𝑉 (𝑁‘(𝑈 ∪ {𝑣})) = 𝑉) ↔ ((𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉) ∧ ∃𝑣 ∈ 𝑉 (𝑈 ⊕ (𝑁‘{𝑣})) = 𝑉)))
30		df-3an 1087	. . 3 ⊢ ((𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ∧ ∃𝑣 ∈ 𝑉 (𝑁‘(𝑈 ∪ {𝑣})) = 𝑉) ↔ ((𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉) ∧ ∃𝑣 ∈ 𝑉 (𝑁‘(𝑈 ∪ {𝑣})) = 𝑉))
31		df-3an 1087	. . 3 ⊢ ((𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ∧ ∃𝑣 ∈ 𝑉 (𝑈 ⊕ (𝑁‘{𝑣})) = 𝑉) ↔ ((𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉) ∧ ∃𝑣 ∈ 𝑉 (𝑈 ⊕ (𝑁‘{𝑣})) = 𝑉))
32	29, 30, 31	3bitr4g 314	. 2 ⊢ (𝜑 → ((𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ∧ ∃𝑣 ∈ 𝑉 (𝑁‘(𝑈 ∪ {𝑣})) = 𝑉) ↔ (𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ∧ ∃𝑣 ∈ 𝑉 (𝑈 ⊕ (𝑁‘{𝑣})) = 𝑉)))
33	7, 32	bitrd 279	1 ⊢ (𝜑 → (𝑈 ∈ 𝐻 ↔ (𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ∧ ∃𝑣 ∈ 𝑉 (𝑈 ⊕ (𝑁‘{𝑣})) = 𝑉)))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 205 ∧ wa 395 ∧ w3a 1085 = wceq 1534 ∈ wcel 2099 ≠ wne 2937 ∃wrex 3067 ∪ cun 3945 ⊆ wss 3947 {csn 4629 ‘cfv 6548 (class class class)co 7420 Basecbs 17179 LSSumclsm 19588 LModclmod 20742 LSubSpclss 20814 LSpanclspn 20854 LSHypclsh 38447

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1790 ax-4 1804 ax-5 1906 ax-6 1964 ax-7 2004 ax-8 2101 ax-9 2109 ax-10 2130 ax-11 2147 ax-12 2167 ax-ext 2699 ax-rep 5285 ax-sep 5299 ax-nul 5306 ax-pow 5365 ax-pr 5429 ax-un 7740 ax-cnex 11194 ax-resscn 11195 ax-1cn 11196 ax-icn 11197 ax-addcl 11198 ax-addrcl 11199 ax-mulcl 11200 ax-mulrcl 11201 ax-mulcom 11202 ax-addass 11203 ax-mulass 11204 ax-distr 11205 ax-i2m1 11206 ax-1ne0 11207 ax-1rid 11208 ax-rnegex 11209 ax-rrecex 11210 ax-cnre 11211 ax-pre-lttri 11212 ax-pre-lttrn 11213 ax-pre-ltadd 11214 ax-pre-mulgt0 11215

This theorem depends on definitions: df-bi 206 df-an 396 df-or 847 df-3or 1086 df-3an 1087 df-tru 1537 df-fal 1547 df-ex 1775 df-nf 1779 df-sb 2061 df-mo 2530 df-eu 2559 df-clab 2706 df-cleq 2720 df-clel 2806 df-nfc 2881 df-ne 2938 df-nel 3044 df-ral 3059 df-rex 3068 df-rmo 3373 df-reu 3374 df-rab 3430 df-v 3473 df-sbc 3777 df-csb 3893 df-dif 3950 df-un 3952 df-in 3954 df-ss 3964 df-pss 3966 df-nul 4324 df-if 4530 df-pw 4605 df-sn 4630 df-pr 4632 df-op 4636 df-uni 4909 df-int 4950 df-iun 4998 df-br 5149 df-opab 5211 df-mpt 5232 df-tr 5266 df-id 5576 df-eprel 5582 df-po 5590 df-so 5591 df-fr 5633 df-we 5635 df-xp 5684 df-rel 5685 df-cnv 5686 df-co 5687 df-dm 5688 df-rn 5689 df-res 5690 df-ima 5691 df-pred 6305 df-ord 6372 df-on 6373 df-lim 6374 df-suc 6375 df-iota 6500 df-fun 6550 df-fn 6551 df-f 6552 df-f1 6553 df-fo 6554 df-f1o 6555 df-fv 6556 df-riota 7376 df-ov 7423 df-oprab 7424 df-mpo 7425 df-om 7871 df-1st 7993 df-2nd 7994 df-frecs 8286 df-wrecs 8317 df-recs 8391 df-rdg 8430 df-er 8724 df-en 8964 df-dom 8965 df-sdom 8966 df-pnf 11280 df-mnf 11281 df-xr 11282 df-ltxr 11283 df-le 11284 df-sub 11476 df-neg 11477 df-nn 12243 df-2 12305 df-sets 17132 df-slot 17150 df-ndx 17162 df-base 17180 df-ress 17209 df-plusg 17245 df-0g 17422 df-mgm 18599 df-sgrp 18678 df-mnd 18694 df-submnd 18740 df-grp 18892 df-minusg 18893 df-sbg 18894 df-subg 19077 df-cntz 19267 df-lsm 19590 df-cmn 19736 df-abl 19737 df-mgp 20074 df-ur 20121 df-ring 20174 df-lmod 20744 df-lss 20815 df-lsp 20855 df-lshyp 38449

This theorem is referenced by: lshpnelb 38456 lshpcmp 38460 islshpat 38489 lshpkrex 38590 dochshpncl 40857

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