ipasslem8 - Metamath Proof Explorer

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Theorem ipasslem8 30908

Description: Lemma for ipassi 30912. By ipasslem5 30906, 𝐹 is 0 for all ℚ; since it is continuous and ℚ is dense in ℝ by qdensere2 24762, we conclude 𝐹 is 0 for all ℝ. (Contributed by NM, 24-Aug-2007.) (Revised by Mario Carneiro, 6-May-2014.) (New usage is discouraged.)

**Hypotheses**
Ref	Expression
ip1i.1	⊢ 𝑋 = (BaseSet‘𝑈)
ip1i.2	⊢ 𝐺 = ( +_𝑣 ‘𝑈)
ip1i.4	⊢ 𝑆 = ( ·_𝑠OLD ‘𝑈)
ip1i.7	⊢ 𝑃 = (·_𝑖OLD‘𝑈)
ip1i.9	⊢ 𝑈 ∈ CPreHil_OLD
ipasslem7.a	⊢ 𝐴 ∈ 𝑋
ipasslem7.b	⊢ 𝐵 ∈ 𝑋
ipasslem7.f	⊢ 𝐹 = (𝑤 ∈ ℝ ↦ (((𝑤𝑆𝐴)𝑃𝐵) − (𝑤 · (𝐴𝑃𝐵))))

**Assertion**
Ref	Expression
ipasslem8	⊢ 𝐹:ℝ⟶{0}

Distinct variable groups: 𝑤,𝐵 𝑤,𝑃 𝑤,𝑆 𝑤,𝑈 𝑤,𝑋 𝑤,𝐴 Allowed substitution hints: 𝐹(𝑤) 𝐺(𝑤)

Proof of Theorem ipasslem8 Dummy variable 𝑥 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		0cn 11136	. 2 ⊢ 0 ∈ ℂ
2		qre 12903	. . . . . 6 ⊢ (𝑥 ∈ ℚ → 𝑥 ∈ ℝ)
3		oveq1 7374	. . . . . . . . 9 ⊢ (𝑤 = 𝑥 → (𝑤𝑆𝐴) = (𝑥𝑆𝐴))
4	3	oveq1d 7382	. . . . . . . 8 ⊢ (𝑤 = 𝑥 → ((𝑤𝑆𝐴)𝑃𝐵) = ((𝑥𝑆𝐴)𝑃𝐵))
5		oveq1 7374	. . . . . . . 8 ⊢ (𝑤 = 𝑥 → (𝑤 · (𝐴𝑃𝐵)) = (𝑥 · (𝐴𝑃𝐵)))
6	4, 5	oveq12d 7385	. . . . . . 7 ⊢ (𝑤 = 𝑥 → (((𝑤𝑆𝐴)𝑃𝐵) − (𝑤 · (𝐴𝑃𝐵))) = (((𝑥𝑆𝐴)𝑃𝐵) − (𝑥 · (𝐴𝑃𝐵))))
7		ipasslem7.f	. . . . . . 7 ⊢ 𝐹 = (𝑤 ∈ ℝ ↦ (((𝑤𝑆𝐴)𝑃𝐵) − (𝑤 · (𝐴𝑃𝐵))))
8		ovex 7400	. . . . . . 7 ⊢ (((𝑥𝑆𝐴)𝑃𝐵) − (𝑥 · (𝐴𝑃𝐵))) ∈ V
9	6, 7, 8	fvmpt 6947	. . . . . 6 ⊢ (𝑥 ∈ ℝ → (𝐹‘𝑥) = (((𝑥𝑆𝐴)𝑃𝐵) − (𝑥 · (𝐴𝑃𝐵))))
10	2, 9	syl 17	. . . . 5 ⊢ (𝑥 ∈ ℚ → (𝐹‘𝑥) = (((𝑥𝑆𝐴)𝑃𝐵) − (𝑥 · (𝐴𝑃𝐵))))
11		ipasslem7.a	. . . . . 6 ⊢ 𝐴 ∈ 𝑋
12		qcn 12913	. . . . . . . . 9 ⊢ (𝑥 ∈ ℚ → 𝑥 ∈ ℂ)
13		ip1i.9	. . . . . . . . . . 11 ⊢ 𝑈 ∈ CPreHil_OLD
14	13	phnvi 30887	. . . . . . . . . 10 ⊢ 𝑈 ∈ NrmCVec
15		ip1i.1	. . . . . . . . . . 11 ⊢ 𝑋 = (BaseSet‘𝑈)
16		ip1i.4	. . . . . . . . . . 11 ⊢ 𝑆 = ( ·_𝑠OLD ‘𝑈)
17	15, 16	nvscl 30697	. . . . . . . . . 10 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝑥 ∈ ℂ ∧ 𝐴 ∈ 𝑋) → (𝑥𝑆𝐴) ∈ 𝑋)
18	14, 17	mp3an1 1451	. . . . . . . . 9 ⊢ ((𝑥 ∈ ℂ ∧ 𝐴 ∈ 𝑋) → (𝑥𝑆𝐴) ∈ 𝑋)
19	12, 18	sylan 581	. . . . . . . 8 ⊢ ((𝑥 ∈ ℚ ∧ 𝐴 ∈ 𝑋) → (𝑥𝑆𝐴) ∈ 𝑋)
20		ipasslem7.b	. . . . . . . . 9 ⊢ 𝐵 ∈ 𝑋
21		ip1i.7	. . . . . . . . . 10 ⊢ 𝑃 = (·_𝑖OLD‘𝑈)
22	15, 21	dipcl 30783	. . . . . . . . 9 ⊢ ((𝑈 ∈ NrmCVec ∧ (𝑥𝑆𝐴) ∈ 𝑋 ∧ 𝐵 ∈ 𝑋) → ((𝑥𝑆𝐴)𝑃𝐵) ∈ ℂ)
23	14, 20, 22	mp3an13 1455	. . . . . . . 8 ⊢ ((𝑥𝑆𝐴) ∈ 𝑋 → ((𝑥𝑆𝐴)𝑃𝐵) ∈ ℂ)
24	19, 23	syl 17	. . . . . . 7 ⊢ ((𝑥 ∈ ℚ ∧ 𝐴 ∈ 𝑋) → ((𝑥𝑆𝐴)𝑃𝐵) ∈ ℂ)
25		ip1i.2	. . . . . . . 8 ⊢ 𝐺 = ( +_𝑣 ‘𝑈)
26	15, 25, 16, 21, 13, 20	ipasslem5 30906	. . . . . . 7 ⊢ ((𝑥 ∈ ℚ ∧ 𝐴 ∈ 𝑋) → ((𝑥𝑆𝐴)𝑃𝐵) = (𝑥 · (𝐴𝑃𝐵)))
27	24, 26	subeq0bd 11576	. . . . . 6 ⊢ ((𝑥 ∈ ℚ ∧ 𝐴 ∈ 𝑋) → (((𝑥𝑆𝐴)𝑃𝐵) − (𝑥 · (𝐴𝑃𝐵))) = 0)
28	11, 27	mpan2 692	. . . . 5 ⊢ (𝑥 ∈ ℚ → (((𝑥𝑆𝐴)𝑃𝐵) − (𝑥 · (𝐴𝑃𝐵))) = 0)
29	10, 28	eqtrd 2771	. . . 4 ⊢ (𝑥 ∈ ℚ → (𝐹‘𝑥) = 0)
30	29	rgen 3053	. . 3 ⊢ ∀𝑥 ∈ ℚ (𝐹‘𝑥) = 0
31	7	funmpt2 6537	. . . 4 ⊢ Fun 𝐹
32		qssre 12909	. . . . 5 ⊢ ℚ ⊆ ℝ
33		ovex 7400	. . . . . 6 ⊢ (((𝑤𝑆𝐴)𝑃𝐵) − (𝑤 · (𝐴𝑃𝐵))) ∈ V
34	33, 7	dmmpti 6642	. . . . 5 ⊢ dom 𝐹 = ℝ
35	32, 34	sseqtrri 3971	. . . 4 ⊢ ℚ ⊆ dom 𝐹
36		funconstss 7008	. . . 4 ⊢ ((Fun 𝐹 ∧ ℚ ⊆ dom 𝐹) → (∀𝑥 ∈ ℚ (𝐹‘𝑥) = 0 ↔ ℚ ⊆ (^◡𝐹 “ {0})))
37	31, 35, 36	mp2an 693	. . 3 ⊢ (∀𝑥 ∈ ℚ (𝐹‘𝑥) = 0 ↔ ℚ ⊆ (^◡𝐹 “ {0}))
38	30, 37	mpbi 230	. 2 ⊢ ℚ ⊆ (^◡𝐹 “ {0})
39		qdensere 24734	. 2 ⊢ ((cls‘(topGen‘ran (,)))‘ℚ) = ℝ
40		eqid 2736	. . . . 5 ⊢ (TopOpen‘ℂ_fld) = (TopOpen‘ℂ_fld)
41	40	cnfldhaus 24749	. . . 4 ⊢ (TopOpen‘ℂ_fld) ∈ Haus
42		haust1 23317	. . . 4 ⊢ ((TopOpen‘ℂ_fld) ∈ Haus → (TopOpen‘ℂ_fld) ∈ Fre)
43	41, 42	ax-mp 5	. . 3 ⊢ (TopOpen‘ℂ_fld) ∈ Fre
44		eqid 2736	. . . 4 ⊢ (topGen‘ran (,)) = (topGen‘ran (,))
45	15, 25, 16, 21, 13, 11, 20, 7, 44, 40	ipasslem7 30907	. . 3 ⊢ 𝐹 ∈ ((topGen‘ran (,)) Cn (TopOpen‘ℂ_fld))
46		uniretop 24727	. . . 4 ⊢ ℝ = ∪ (topGen‘ran (,))
47	40	cnfldtopon 24747	. . . . 5 ⊢ (TopOpen‘ℂ_fld) ∈ (TopOn‘ℂ)
48	47	toponunii 22881	. . . 4 ⊢ ℂ = ∪ (TopOpen‘ℂ_fld)
49	46, 48	dnsconst 23343	. . 3 ⊢ ((((TopOpen‘ℂ_fld) ∈ Fre ∧ 𝐹 ∈ ((topGen‘ran (,)) Cn (TopOpen‘ℂ_fld))) ∧ (0 ∈ ℂ ∧ ℚ ⊆ (^◡𝐹 “ {0}) ∧ ((cls‘(topGen‘ran (,)))‘ℚ) = ℝ)) → 𝐹:ℝ⟶{0})
50	43, 45, 49	mpanl12 703	. 2 ⊢ ((0 ∈ ℂ ∧ ℚ ⊆ (^◡𝐹 “ {0}) ∧ ((cls‘(topGen‘ran (,)))‘ℚ) = ℝ) → 𝐹:ℝ⟶{0})
51	1, 38, 39, 50	mp3an 1464	1 ⊢ 𝐹:ℝ⟶{0}

Colors of variables: wff setvar class

Syntax hints: ↔ wb 206 ∧ wa 395 ∧ w3a 1087 = wceq 1542 ∈ wcel 2114 ∀wral 3051 ⊆ wss 3889 {csn 4567 ↦ cmpt 5166 ^◡ccnv 5630 dom cdm 5631 ran crn 5632 “ cima 5634 Fun wfun 6492 ⟶wf 6494 ‘cfv 6498 (class class class)co 7367 ℂcc 11036 ℝcr 11037 0cc0 11038 · cmul 11043 − cmin 11377 ℚcq 12898 (,)cioo 13298 TopOpenctopn 17384 topGenctg 17400 ℂ_fldccnfld 21352 clsccl 22983 Cn ccn 23189 Frect1 23272 Hauscha 23273 NrmCVeccnv 30655 +_𝑣 cpv 30656 BaseSetcba 30657 ·_𝑠OLD cns 30658 ·_𝑖OLDcdip 30771 CPreHil_OLDccphlo 30883

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-inf2 9562 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-pre-sup 11116 ax-addf 11117 ax-mulf 11118

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-se 5585 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-isom 6507 df-riota 7324 df-ov 7370 df-oprab 7371 df-mpo 7372 df-of 7631 df-om 7818 df-1st 7942 df-2nd 7943 df-supp 8111 df-frecs 8231 df-wrecs 8262 df-recs 8311 df-rdg 8349 df-1o 8405 df-2o 8406 df-er 8643 df-map 8775 df-ixp 8846 df-en 8894 df-dom 8895 df-sdom 8896 df-fin 8897 df-fsupp 9275 df-fi 9324 df-sup 9355 df-inf 9356 df-oi 9425 df-card 9863 df-pnf 11181 df-mnf 11182 df-xr 11183 df-ltxr 11184 df-le 11185 df-sub 11379 df-neg 11380 df-div 11808 df-nn 12175 df-2 12244 df-3 12245 df-4 12246 df-5 12247 df-6 12248 df-7 12249 df-8 12250 df-9 12251 df-n0 12438 df-z 12525 df-dec 12645 df-uz 12789 df-q 12899 df-rp 12943 df-xneg 13063 df-xadd 13064 df-xmul 13065 df-ioo 13302 df-icc 13305 df-fz 13462 df-fzo 13609 df-seq 13964 df-exp 14024 df-hash 14293 df-cj 15061 df-re 15062 df-im 15063 df-sqrt 15197 df-abs 15198 df-clim 15450 df-sum 15649 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-starv 17235 df-sca 17236 df-vsca 17237 df-ip 17238 df-tset 17239 df-ple 17240 df-ds 17242 df-unif 17243 df-hom 17244 df-cco 17245 df-rest 17385 df-topn 17386 df-0g 17404 df-gsum 17405 df-topgen 17406 df-pt 17407 df-prds 17410 df-xrs 17466 df-qtop 17471 df-imas 17472 df-xps 17474 df-mre 17548 df-mrc 17549 df-acs 17551 df-mgm 18608 df-sgrp 18687 df-mnd 18703 df-submnd 18752 df-mulg 19044 df-cntz 19292 df-cmn 19757 df-psmet 21344 df-xmet 21345 df-met 21346 df-bl 21347 df-mopn 21348 df-cnfld 21353 df-top 22859 df-topon 22876 df-topsp 22898 df-bases 22911 df-cld 22984 df-ntr 22985 df-cls 22986 df-cn 23192 df-cnp 23193 df-t1 23279 df-haus 23280 df-tx 23527 df-hmeo 23720 df-xms 24285 df-ms 24286 df-tms 24287 df-grpo 30564 df-gid 30565 df-ginv 30566 df-gdiv 30567 df-ablo 30616 df-vc 30630 df-nv 30663 df-va 30666 df-ba 30667 df-sm 30668 df-0v 30669 df-vs 30670 df-nmcv 30671 df-ims 30672 df-dip 30772 df-ph 30884

This theorem is referenced by: ipasslem9 30909

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