ipasslem8 - Metamath Proof Explorer

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Theorem ipasslem8 27820

Description: Lemma for ipassi 27824. By ipasslem5 27818, 𝐹 is 0 for all ℚ; since it is continuous and ℚ is dense in ℝ by qdensere2 22647, 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 10070	. 2 ⊢ 0 ∈ ℂ
2		qre 11831	. . . . . 6 ⊢ (𝑥 ∈ ℚ → 𝑥 ∈ ℝ)
3		oveq1 6697	. . . . . . . . 9 ⊢ (𝑤 = 𝑥 → (𝑤𝑆𝐴) = (𝑥𝑆𝐴))
4	3	oveq1d 6705	. . . . . . . 8 ⊢ (𝑤 = 𝑥 → ((𝑤𝑆𝐴)𝑃𝐵) = ((𝑥𝑆𝐴)𝑃𝐵))
5		oveq1 6697	. . . . . . . 8 ⊢ (𝑤 = 𝑥 → (𝑤 · (𝐴𝑃𝐵)) = (𝑥 · (𝐴𝑃𝐵)))
6	4, 5	oveq12d 6708	. . . . . . 7 ⊢ (𝑤 = 𝑥 → (((𝑤𝑆𝐴)𝑃𝐵) − (𝑤 · (𝐴𝑃𝐵))) = (((𝑥𝑆𝐴)𝑃𝐵) − (𝑥 · (𝐴𝑃𝐵))))
7		ipasslem7.f	. . . . . . 7 ⊢ 𝐹 = (𝑤 ∈ ℝ ↦ (((𝑤𝑆𝐴)𝑃𝐵) − (𝑤 · (𝐴𝑃𝐵))))
8		ovex 6718	. . . . . . 7 ⊢ (((𝑥𝑆𝐴)𝑃𝐵) − (𝑥 · (𝐴𝑃𝐵))) ∈ V
9	6, 7, 8	fvmpt 6321	. . . . . 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 11840	. . . . . . . . 9 ⊢ (𝑥 ∈ ℚ → 𝑥 ∈ ℂ)
13		ip1i.9	. . . . . . . . . . 11 ⊢ 𝑈 ∈ CPreHil_OLD
14	13	phnvi 27799	. . . . . . . . . 10 ⊢ 𝑈 ∈ NrmCVec
15		ip1i.1	. . . . . . . . . . 11 ⊢ 𝑋 = (BaseSet‘𝑈)
16		ip1i.4	. . . . . . . . . . 11 ⊢ 𝑆 = ( ·_𝑠OLD ‘𝑈)
17	15, 16	nvscl 27609	. . . . . . . . . 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 487	. . . . . . . 8 ⊢ ((𝑥 ∈ ℚ ∧ 𝐴 ∈ 𝑋) → (𝑥𝑆𝐴) ∈ 𝑋)
20		ipasslem7.b	. . . . . . . . 9 ⊢ 𝐵 ∈ 𝑋
21		ip1i.7	. . . . . . . . . 10 ⊢ 𝑃 = (·_𝑖OLD‘𝑈)
22	15, 21	dipcl 27695	. . . . . . . . 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 27818	. . . . . . 7 ⊢ ((𝑥 ∈ ℚ ∧ 𝐴 ∈ 𝑋) → ((𝑥𝑆𝐴)𝑃𝐵) = (𝑥 · (𝐴𝑃𝐵)))
27	24, 26	subeq0bd 10494	. . . . . 6 ⊢ ((𝑥 ∈ ℚ ∧ 𝐴 ∈ 𝑋) → (((𝑥𝑆𝐴)𝑃𝐵) − (𝑥 · (𝐴𝑃𝐵))) = 0)
28	11, 27	mpan2 707	. . . . 5 ⊢ (𝑥 ∈ ℚ → (((𝑥𝑆𝐴)𝑃𝐵) − (𝑥 · (𝐴𝑃𝐵))) = 0)
29	10, 28	eqtrd 2685	. . . 4 ⊢ (𝑥 ∈ ℚ → (𝐹‘𝑥) = 0)
30	29	rgen 2951	. . 3 ⊢ ∀𝑥 ∈ ℚ (𝐹‘𝑥) = 0
31	7	funmpt2 5965	. . . 4 ⊢ Fun 𝐹
32		qssre 11836	. . . . 5 ⊢ ℚ ⊆ ℝ
33		ovex 6718	. . . . . 6 ⊢ (((𝑤𝑆𝐴)𝑃𝐵) − (𝑤 · (𝐴𝑃𝐵))) ∈ V
34	33, 7	dmmpti 6061	. . . . 5 ⊢ dom 𝐹 = ℝ
35	32, 34	sseqtr4i 3671	. . . 4 ⊢ ℚ ⊆ dom 𝐹
36		funconstss 6375	. . . 4 ⊢ ((Fun 𝐹 ∧ ℚ ⊆ dom 𝐹) → (∀𝑥 ∈ ℚ (𝐹‘𝑥) = 0 ↔ ℚ ⊆ (^◡𝐹 “ {0})))
37	31, 35, 36	mp2an 708	. . 3 ⊢ (∀𝑥 ∈ ℚ (𝐹‘𝑥) = 0 ↔ ℚ ⊆ (^◡𝐹 “ {0}))
38	30, 37	mpbi 220	. 2 ⊢ ℚ ⊆ (^◡𝐹 “ {0})
39		qdensere 22620	. 2 ⊢ ((cls‘(topGen‘ran (,)))‘ℚ) = ℝ
40		eqid 2651	. . . . 5 ⊢ (TopOpen‘ℂ_fld) = (TopOpen‘ℂ_fld)
41	40	cnfldhaus 22635	. . . 4 ⊢ (TopOpen‘ℂ_fld) ∈ Haus
42		haust1 21204	. . . 4 ⊢ ((TopOpen‘ℂ_fld) ∈ Haus → (TopOpen‘ℂ_fld) ∈ Fre)
43	41, 42	ax-mp 5	. . 3 ⊢ (TopOpen‘ℂ_fld) ∈ Fre
44		eqid 2651	. . . 4 ⊢ (topGen‘ran (,)) = (topGen‘ran (,))
45	15, 25, 16, 21, 13, 11, 20, 7, 44, 40	ipasslem7 27819	. . 3 ⊢ 𝐹 ∈ ((topGen‘ran (,)) Cn (TopOpen‘ℂ_fld))
46		uniretop 22613	. . . 4 ⊢ ℝ = ∪ (topGen‘ran (,))
47	40	cnfldtopon 22633	. . . . 5 ⊢ (TopOpen‘ℂ_fld) ∈ (TopOn‘ℂ)
48	47	toponunii 20769	. . . 4 ⊢ ℂ = ∪ (TopOpen‘ℂ_fld)
49	46, 48	dnsconst 21230	. . 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 718	. 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 196 ∧ wa 383 ∧ w3a 1054 = wceq 1523 ∈ wcel 2030 ∀wral 2941 ⊆ wss 3607 {csn 4210 ↦ cmpt 4762 ^◡ccnv 5142 dom cdm 5143 ran crn 5144 “ cima 5146 Fun wfun 5920 ⟶wf 5922 ‘cfv 5926 (class class class)co 6690 ℂcc 9972 ℝcr 9973 0cc0 9974 · cmul 9979 − cmin 10304 ℚcq 11826 (,)cioo 12213 TopOpenctopn 16129 topGenctg 16145 ℂ_fldccnfld 19794 clsccl 20870 Cn ccn 21076 Frect1 21159 Hauscha 21160 NrmCVeccnv 27567 +_𝑣 cpv 27568 BaseSetcba 27569 ·_𝑠OLD cns 27570 ·_𝑖OLDcdip 27683 CPreHil_OLDccphlo 27795

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1762 ax-4 1777 ax-5 1879 ax-6 1945 ax-7 1981 ax-8 2032 ax-9 2039 ax-10 2059 ax-11 2074 ax-12 2087 ax-13 2282 ax-ext 2631 ax-rep 4804 ax-sep 4814 ax-nul 4822 ax-pow 4873 ax-pr 4936 ax-un 6991 ax-inf2 8576 ax-cnex 10030 ax-resscn 10031 ax-1cn 10032 ax-icn 10033 ax-addcl 10034 ax-addrcl 10035 ax-mulcl 10036 ax-mulrcl 10037 ax-mulcom 10038 ax-addass 10039 ax-mulass 10040 ax-distr 10041 ax-i2m1 10042 ax-1ne0 10043 ax-1rid 10044 ax-rnegex 10045 ax-rrecex 10046 ax-cnre 10047 ax-pre-lttri 10048 ax-pre-lttrn 10049 ax-pre-ltadd 10050 ax-pre-mulgt0 10051 ax-pre-sup 10052 ax-addf 10053 ax-mulf 10054

This theorem depends on definitions: df-bi 197 df-or 384 df-an 385 df-3or 1055 df-3an 1056 df-tru 1526 df-fal 1529 df-ex 1745 df-nf 1750 df-sb 1938 df-eu 2502 df-mo 2503 df-clab 2638 df-cleq 2644 df-clel 2647 df-nfc 2782 df-ne 2824 df-nel 2927 df-ral 2946 df-rex 2947 df-reu 2948 df-rmo 2949 df-rab 2950 df-v 3233 df-sbc 3469 df-csb 3567 df-dif 3610 df-un 3612 df-in 3614 df-ss 3621 df-pss 3623 df-nul 3949 df-if 4120 df-pw 4193 df-sn 4211 df-pr 4213 df-tp 4215 df-op 4217 df-uni 4469 df-int 4508 df-iun 4554 df-iin 4555 df-br 4686 df-opab 4746 df-mpt 4763 df-tr 4786 df-id 5053 df-eprel 5058 df-po 5064 df-so 5065 df-fr 5102 df-se 5103 df-we 5104 df-xp 5149 df-rel 5150 df-cnv 5151 df-co 5152 df-dm 5153 df-rn 5154 df-res 5155 df-ima 5156 df-pred 5718 df-ord 5764 df-on 5765 df-lim 5766 df-suc 5767 df-iota 5889 df-fun 5928 df-fn 5929 df-f 5930 df-f1 5931 df-fo 5932 df-f1o 5933 df-fv 5934 df-isom 5935 df-riota 6651 df-ov 6693 df-oprab 6694 df-mpt2 6695 df-of 6939 df-om 7108 df-1st 7210 df-2nd 7211 df-supp 7341 df-wrecs 7452 df-recs 7513 df-rdg 7551 df-1o 7605 df-2o 7606 df-oadd 7609 df-er 7787 df-map 7901 df-ixp 7951 df-en 7998 df-dom 7999 df-sdom 8000 df-fin 8001 df-fsupp 8317 df-fi 8358 df-sup 8389 df-inf 8390 df-oi 8456 df-card 8803 df-cda 9028 df-pnf 10114 df-mnf 10115 df-xr 10116 df-ltxr 10117 df-le 10118 df-sub 10306 df-neg 10307 df-div 10723 df-nn 11059 df-2 11117 df-3 11118 df-4 11119 df-5 11120 df-6 11121 df-7 11122 df-8 11123 df-9 11124 df-n0 11331 df-z 11416 df-dec 11532 df-uz 11726 df-q 11827 df-rp 11871 df-xneg 11984 df-xadd 11985 df-xmul 11986 df-ioo 12217 df-icc 12220 df-fz 12365 df-fzo 12505 df-seq 12842 df-exp 12901 df-hash 13158 df-cj 13883 df-re 13884 df-im 13885 df-sqrt 14019 df-abs 14020 df-clim 14263 df-sum 14461 df-struct 15906 df-ndx 15907 df-slot 15908 df-base 15910 df-sets 15911 df-ress 15912 df-plusg 16001 df-mulr 16002 df-starv 16003 df-sca 16004 df-vsca 16005 df-ip 16006 df-tset 16007 df-ple 16008 df-ds 16011 df-unif 16012 df-hom 16013 df-cco 16014 df-rest 16130 df-topn 16131 df-0g 16149 df-gsum 16150 df-topgen 16151 df-pt 16152 df-prds 16155 df-xrs 16209 df-qtop 16214 df-imas 16215 df-xps 16217 df-mre 16293 df-mrc 16294 df-acs 16296 df-mgm 17289 df-sgrp 17331 df-mnd 17342 df-submnd 17383 df-mulg 17588 df-cntz 17796 df-cmn 18241 df-psmet 19786 df-xmet 19787 df-met 19788 df-bl 19789 df-mopn 19790 df-cnfld 19795 df-top 20747 df-topon 20764 df-topsp 20785 df-bases 20798 df-cld 20871 df-ntr 20872 df-cls 20873 df-cn 21079 df-cnp 21080 df-t1 21166 df-haus 21167 df-tx 21413 df-hmeo 21606 df-xms 22172 df-ms 22173 df-tms 22174 df-grpo 27475 df-gid 27476 df-ginv 27477 df-gdiv 27478 df-ablo 27527 df-vc 27542 df-nv 27575 df-va 27578 df-ba 27579 df-sm 27580 df-0v 27581 df-vs 27582 df-nmcv 27583 df-ims 27584 df-dip 27684 df-ph 27796

This theorem is referenced by: ipasslem9 27821

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