ipasslem8 - Metamath Proof Explorer

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Theorem ipasslem8 30931

Description: Lemma for ipassi 30935. By ipasslem5 30929, 𝐹 is 0 for all ℚ; since it is continuous and ℚ is dense in ℝ by qdensere2 24758, 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 11138	. 2 ⊢ 0 ∈ ℂ
2		qre 12880	. . . . . 6 ⊢ (𝑥 ∈ ℚ → 𝑥 ∈ ℝ)
3		oveq1 7377	. . . . . . . . 9 ⊢ (𝑤 = 𝑥 → (𝑤𝑆𝐴) = (𝑥𝑆𝐴))
4	3	oveq1d 7385	. . . . . . . 8 ⊢ (𝑤 = 𝑥 → ((𝑤𝑆𝐴)𝑃𝐵) = ((𝑥𝑆𝐴)𝑃𝐵))
5		oveq1 7377	. . . . . . . 8 ⊢ (𝑤 = 𝑥 → (𝑤 · (𝐴𝑃𝐵)) = (𝑥 · (𝐴𝑃𝐵)))
6	4, 5	oveq12d 7388	. . . . . . 7 ⊢ (𝑤 = 𝑥 → (((𝑤𝑆𝐴)𝑃𝐵) − (𝑤 · (𝐴𝑃𝐵))) = (((𝑥𝑆𝐴)𝑃𝐵) − (𝑥 · (𝐴𝑃𝐵))))
7		ipasslem7.f	. . . . . . 7 ⊢ 𝐹 = (𝑤 ∈ ℝ ↦ (((𝑤𝑆𝐴)𝑃𝐵) − (𝑤 · (𝐴𝑃𝐵))))
8		ovex 7403	. . . . . . 7 ⊢ (((𝑥𝑆𝐴)𝑃𝐵) − (𝑥 · (𝐴𝑃𝐵))) ∈ V
9	6, 7, 8	fvmpt 6951	. . . . . 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 12890	. . . . . . . . 9 ⊢ (𝑥 ∈ ℚ → 𝑥 ∈ ℂ)
13		ip1i.9	. . . . . . . . . . 11 ⊢ 𝑈 ∈ CPreHil_OLD
14	13	phnvi 30910	. . . . . . . . . 10 ⊢ 𝑈 ∈ NrmCVec
15		ip1i.1	. . . . . . . . . . 11 ⊢ 𝑋 = (BaseSet‘𝑈)
16		ip1i.4	. . . . . . . . . . 11 ⊢ 𝑆 = ( ·_𝑠OLD ‘𝑈)
17	15, 16	nvscl 30720	. . . . . . . . . 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 30806	. . . . . . . . 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 30929	. . . . . . 7 ⊢ ((𝑥 ∈ ℚ ∧ 𝐴 ∈ 𝑋) → ((𝑥𝑆𝐴)𝑃𝐵) = (𝑥 · (𝐴𝑃𝐵)))
27	24, 26	subeq0bd 11577	. . . . . 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 2772	. . . 4 ⊢ (𝑥 ∈ ℚ → (𝐹‘𝑥) = 0)
30	29	rgen 3054	. . 3 ⊢ ∀𝑥 ∈ ℚ (𝐹‘𝑥) = 0
31	7	funmpt2 6541	. . . 4 ⊢ Fun 𝐹
32		qssre 12886	. . . . 5 ⊢ ℚ ⊆ ℝ
33		ovex 7403	. . . . . 6 ⊢ (((𝑤𝑆𝐴)𝑃𝐵) − (𝑤 · (𝐴𝑃𝐵))) ∈ V
34	33, 7	dmmpti 6646	. . . . 5 ⊢ dom 𝐹 = ℝ
35	32, 34	sseqtrri 3985	. . . 4 ⊢ ℚ ⊆ dom 𝐹
36		funconstss 7012	. . . 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 24730	. 2 ⊢ ((cls‘(topGen‘ran (,)))‘ℚ) = ℝ
40		eqid 2737	. . . . 5 ⊢ (TopOpen‘ℂ_fld) = (TopOpen‘ℂ_fld)
41	40	cnfldhaus 24745	. . . 4 ⊢ (TopOpen‘ℂ_fld) ∈ Haus
42		haust1 23313	. . . 4 ⊢ ((TopOpen‘ℂ_fld) ∈ Haus → (TopOpen‘ℂ_fld) ∈ Fre)
43	41, 42	ax-mp 5	. . 3 ⊢ (TopOpen‘ℂ_fld) ∈ Fre
44		eqid 2737	. . . 4 ⊢ (topGen‘ran (,)) = (topGen‘ran (,))
45	15, 25, 16, 21, 13, 11, 20, 7, 44, 40	ipasslem7 30930	. . 3 ⊢ 𝐹 ∈ ((topGen‘ran (,)) Cn (TopOpen‘ℂ_fld))
46		uniretop 24723	. . . 4 ⊢ ℝ = ∪ (topGen‘ran (,))
47	40	cnfldtopon 24743	. . . . 5 ⊢ (TopOpen‘ℂ_fld) ∈ (TopOn‘ℂ)
48	47	toponunii 22877	. . . 4 ⊢ ℂ = ∪ (TopOpen‘ℂ_fld)
49	46, 48	dnsconst 23339	. . 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 3052 ⊆ wss 3903 {csn 4582 ↦ cmpt 5181 ^◡ccnv 5633 dom cdm 5634 ran crn 5635 “ cima 5637 Fun wfun 6496 ⟶wf 6498 ‘cfv 6502 (class class class)co 7370 ℂcc 11038 ℝcr 11039 0cc0 11040 · cmul 11045 − cmin 11378 ℚcq 12875 (,)cioo 13275 TopOpenctopn 17355 topGenctg 17371 ℂ_fldccnfld 21326 clsccl 22979 Cn ccn 23185 Frect1 23268 Hauscha 23269 NrmCVeccnv 30678 +_𝑣 cpv 30679 BaseSetcba 30680 ·_𝑠OLD cns 30681 ·_𝑖OLDcdip 30794 CPreHil_OLDccphlo 30906

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 2709 ax-rep 5226 ax-sep 5245 ax-nul 5255 ax-pow 5314 ax-pr 5381 ax-un 7692 ax-inf2 9564 ax-cnex 11096 ax-resscn 11097 ax-1cn 11098 ax-icn 11099 ax-addcl 11100 ax-addrcl 11101 ax-mulcl 11102 ax-mulrcl 11103 ax-mulcom 11104 ax-addass 11105 ax-mulass 11106 ax-distr 11107 ax-i2m1 11108 ax-1ne0 11109 ax-1rid 11110 ax-rnegex 11111 ax-rrecex 11112 ax-cnre 11113 ax-pre-lttri 11114 ax-pre-lttrn 11115 ax-pre-ltadd 11116 ax-pre-mulgt0 11117 ax-pre-sup 11118 ax-addf 11119 ax-mulf 11120

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 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-rmo 3352 df-reu 3353 df-rab 3402 df-v 3444 df-sbc 3743 df-csb 3852 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-pss 3923 df-nul 4288 df-if 4482 df-pw 4558 df-sn 4583 df-pr 4585 df-tp 4587 df-op 4589 df-uni 4866 df-int 4905 df-iun 4950 df-iin 4951 df-br 5101 df-opab 5163 df-mpt 5182 df-tr 5208 df-id 5529 df-eprel 5534 df-po 5542 df-so 5543 df-fr 5587 df-se 5588 df-we 5589 df-xp 5640 df-rel 5641 df-cnv 5642 df-co 5643 df-dm 5644 df-rn 5645 df-res 5646 df-ima 5647 df-pred 6269 df-ord 6330 df-on 6331 df-lim 6332 df-suc 6333 df-iota 6458 df-fun 6504 df-fn 6505 df-f 6506 df-f1 6507 df-fo 6508 df-f1o 6509 df-fv 6510 df-isom 6511 df-riota 7327 df-ov 7373 df-oprab 7374 df-mpo 7375 df-of 7634 df-om 7821 df-1st 7945 df-2nd 7946 df-supp 8115 df-frecs 8235 df-wrecs 8266 df-recs 8315 df-rdg 8353 df-1o 8409 df-2o 8410 df-er 8647 df-map 8779 df-ixp 8850 df-en 8898 df-dom 8899 df-sdom 8900 df-fin 8901 df-fsupp 9279 df-fi 9328 df-sup 9359 df-inf 9360 df-oi 9429 df-card 9865 df-pnf 11182 df-mnf 11183 df-xr 11184 df-ltxr 11185 df-le 11186 df-sub 11380 df-neg 11381 df-div 11809 df-nn 12160 df-2 12222 df-3 12223 df-4 12224 df-5 12225 df-6 12226 df-7 12227 df-8 12228 df-9 12229 df-n0 12416 df-z 12503 df-dec 12622 df-uz 12766 df-q 12876 df-rp 12920 df-xneg 13040 df-xadd 13041 df-xmul 13042 df-ioo 13279 df-icc 13282 df-fz 13438 df-fzo 13585 df-seq 13939 df-exp 13999 df-hash 14268 df-cj 15036 df-re 15037 df-im 15038 df-sqrt 15172 df-abs 15173 df-clim 15425 df-sum 15624 df-struct 17088 df-sets 17105 df-slot 17123 df-ndx 17135 df-base 17151 df-ress 17172 df-plusg 17204 df-mulr 17205 df-starv 17206 df-sca 17207 df-vsca 17208 df-ip 17209 df-tset 17210 df-ple 17211 df-ds 17213 df-unif 17214 df-hom 17215 df-cco 17216 df-rest 17356 df-topn 17357 df-0g 17375 df-gsum 17376 df-topgen 17377 df-pt 17378 df-prds 17381 df-xrs 17437 df-qtop 17442 df-imas 17443 df-xps 17445 df-mre 17519 df-mrc 17520 df-acs 17522 df-mgm 18579 df-sgrp 18658 df-mnd 18674 df-submnd 18723 df-mulg 19015 df-cntz 19263 df-cmn 19728 df-psmet 21318 df-xmet 21319 df-met 21320 df-bl 21321 df-mopn 21322 df-cnfld 21327 df-top 22855 df-topon 22872 df-topsp 22894 df-bases 22907 df-cld 22980 df-ntr 22981 df-cls 22982 df-cn 23188 df-cnp 23189 df-t1 23275 df-haus 23276 df-tx 23523 df-hmeo 23716 df-xms 24281 df-ms 24282 df-tms 24283 df-grpo 30587 df-gid 30588 df-ginv 30589 df-gdiv 30590 df-ablo 30639 df-vc 30653 df-nv 30686 df-va 30689 df-ba 30690 df-sm 30691 df-0v 30692 df-vs 30693 df-nmcv 30694 df-ims 30695 df-dip 30795 df-ph 30907

This theorem is referenced by: ipasslem9 30932

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