dvlog2lem - Metamath Proof Explorer

	Metamath Proof Explorer		< Previous Next > Nearby theorems
Mirrors > Home > MPE Home > Th. List > dvlog2lem		Structured version Visualization version GIF version

Theorem dvlog2lem 26160

Description: Lemma for dvlog2 26161. (Contributed by Mario Carneiro, 1-Mar-2015.)

**Hypothesis**
Ref	Expression
dvlog2.s	⊢ 𝑆 = (1(ball‘(abs ∘ − ))1)

**Assertion**
Ref	Expression
dvlog2lem	⊢ 𝑆 ⊆ (ℂ ∖ (-∞(,]0))

Proof of Theorem dvlog2lem Dummy variable 𝑥 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		dvlog2.s	. . . . 5 ⊢ 𝑆 = (1(ball‘(abs ∘ − ))1)
2		cnxmet 24289	. . . . . 6 ⊢ (abs ∘ − ) ∈ (∞Met‘ℂ)
3		ax-1cn 11168	. . . . . 6 ⊢ 1 ∈ ℂ
4		1xr 11273	. . . . . 6 ⊢ 1 ∈ ℝ^*
5		blssm 23924	. . . . . 6 ⊢ (((abs ∘ − ) ∈ (∞Met‘ℂ) ∧ 1 ∈ ℂ ∧ 1 ∈ ℝ^*) → (1(ball‘(abs ∘ − ))1) ⊆ ℂ)
6	2, 3, 4, 5	mp3an 1462	. . . . 5 ⊢ (1(ball‘(abs ∘ − ))1) ⊆ ℂ
7	1, 6	eqsstri 4017	. . . 4 ⊢ 𝑆 ⊆ ℂ
8	7	sseli 3979	. . 3 ⊢ (𝑥 ∈ 𝑆 → 𝑥 ∈ ℂ)
9		1red 11215	. . . . . . 7 ⊢ (𝑥 ∈ (-∞(,]0) → 1 ∈ ℝ)
10		cnmet 24288	. . . . . . . 8 ⊢ (abs ∘ − ) ∈ (Met‘ℂ)
11		mnfxr 11271	. . . . . . . . . . 11 ⊢ -∞ ∈ ℝ^*
12		0re 11216	. . . . . . . . . . 11 ⊢ 0 ∈ ℝ
13		iocssre 13404	. . . . . . . . . . 11 ⊢ ((-∞ ∈ ℝ^* ∧ 0 ∈ ℝ) → (-∞(,]0) ⊆ ℝ)
14	11, 12, 13	mp2an 691	. . . . . . . . . 10 ⊢ (-∞(,]0) ⊆ ℝ
15		ax-resscn 11167	. . . . . . . . . 10 ⊢ ℝ ⊆ ℂ
16	14, 15	sstri 3992	. . . . . . . . 9 ⊢ (-∞(,]0) ⊆ ℂ
17	16	sseli 3979	. . . . . . . 8 ⊢ (𝑥 ∈ (-∞(,]0) → 𝑥 ∈ ℂ)
18		metcl 23838	. . . . . . . 8 ⊢ (((abs ∘ − ) ∈ (Met‘ℂ) ∧ 1 ∈ ℂ ∧ 𝑥 ∈ ℂ) → (1(abs ∘ − )𝑥) ∈ ℝ)
19	10, 3, 17, 18	mp3an12i 1466	. . . . . . 7 ⊢ (𝑥 ∈ (-∞(,]0) → (1(abs ∘ − )𝑥) ∈ ℝ)
20		1m0e1 12333	. . . . . . . . 9 ⊢ (1 − 0) = 1
21	14	sseli 3979	. . . . . . . . . 10 ⊢ (𝑥 ∈ (-∞(,]0) → 𝑥 ∈ ℝ)
22	12	a1i 11	. . . . . . . . . 10 ⊢ (𝑥 ∈ (-∞(,]0) → 0 ∈ ℝ)
23		elioc2 13387	. . . . . . . . . . . 12 ⊢ ((-∞ ∈ ℝ^* ∧ 0 ∈ ℝ) → (𝑥 ∈ (-∞(,]0) ↔ (𝑥 ∈ ℝ ∧ -∞ < 𝑥 ∧ 𝑥 ≤ 0)))
24	11, 12, 23	mp2an 691	. . . . . . . . . . 11 ⊢ (𝑥 ∈ (-∞(,]0) ↔ (𝑥 ∈ ℝ ∧ -∞ < 𝑥 ∧ 𝑥 ≤ 0))
25	24	simp3bi 1148	. . . . . . . . . 10 ⊢ (𝑥 ∈ (-∞(,]0) → 𝑥 ≤ 0)
26	21, 22, 9, 25	lesub2dd 11831	. . . . . . . . 9 ⊢ (𝑥 ∈ (-∞(,]0) → (1 − 0) ≤ (1 − 𝑥))
27	20, 26	eqbrtrrid 5185	. . . . . . . 8 ⊢ (𝑥 ∈ (-∞(,]0) → 1 ≤ (1 − 𝑥))
28		eqid 2733	. . . . . . . . . . 11 ⊢ (abs ∘ − ) = (abs ∘ − )
29	28	cnmetdval 24287	. . . . . . . . . 10 ⊢ ((1 ∈ ℂ ∧ 𝑥 ∈ ℂ) → (1(abs ∘ − )𝑥) = (abs‘(1 − 𝑥)))
30	3, 17, 29	sylancr 588	. . . . . . . . 9 ⊢ (𝑥 ∈ (-∞(,]0) → (1(abs ∘ − )𝑥) = (abs‘(1 − 𝑥)))
31		0le1 11737	. . . . . . . . . . . 12 ⊢ 0 ≤ 1
32	31	a1i 11	. . . . . . . . . . 11 ⊢ (𝑥 ∈ (-∞(,]0) → 0 ≤ 1)
33	21, 22, 9, 25, 32	letrd 11371	. . . . . . . . . 10 ⊢ (𝑥 ∈ (-∞(,]0) → 𝑥 ≤ 1)
34	21, 9, 33	abssubge0d 15378	. . . . . . . . 9 ⊢ (𝑥 ∈ (-∞(,]0) → (abs‘(1 − 𝑥)) = (1 − 𝑥))
35	30, 34	eqtrd 2773	. . . . . . . 8 ⊢ (𝑥 ∈ (-∞(,]0) → (1(abs ∘ − )𝑥) = (1 − 𝑥))
36	27, 35	breqtrrd 5177	. . . . . . 7 ⊢ (𝑥 ∈ (-∞(,]0) → 1 ≤ (1(abs ∘ − )𝑥))
37	9, 19, 36	lensymd 11365	. . . . . 6 ⊢ (𝑥 ∈ (-∞(,]0) → ¬ (1(abs ∘ − )𝑥) < 1)
38	2	a1i 11	. . . . . . 7 ⊢ (𝑥 ∈ (-∞(,]0) → (abs ∘ − ) ∈ (∞Met‘ℂ))
39	4	a1i 11	. . . . . . 7 ⊢ (𝑥 ∈ (-∞(,]0) → 1 ∈ ℝ^*)
40	3	a1i 11	. . . . . . 7 ⊢ (𝑥 ∈ (-∞(,]0) → 1 ∈ ℂ)
41		elbl2 23896	. . . . . . 7 ⊢ ((((abs ∘ − ) ∈ (∞Met‘ℂ) ∧ 1 ∈ ℝ^*) ∧ (1 ∈ ℂ ∧ 𝑥 ∈ ℂ)) → (𝑥 ∈ (1(ball‘(abs ∘ − ))1) ↔ (1(abs ∘ − )𝑥) < 1))
42	38, 39, 40, 17, 41	syl22anc 838	. . . . . 6 ⊢ (𝑥 ∈ (-∞(,]0) → (𝑥 ∈ (1(ball‘(abs ∘ − ))1) ↔ (1(abs ∘ − )𝑥) < 1))
43	37, 42	mtbird 325	. . . . 5 ⊢ (𝑥 ∈ (-∞(,]0) → ¬ 𝑥 ∈ (1(ball‘(abs ∘ − ))1))
44	43	con2i 139	. . . 4 ⊢ (𝑥 ∈ (1(ball‘(abs ∘ − ))1) → ¬ 𝑥 ∈ (-∞(,]0))
45	44, 1	eleq2s 2852	. . 3 ⊢ (𝑥 ∈ 𝑆 → ¬ 𝑥 ∈ (-∞(,]0))
46	8, 45	eldifd 3960	. 2 ⊢ (𝑥 ∈ 𝑆 → 𝑥 ∈ (ℂ ∖ (-∞(,]0)))
47	46	ssriv 3987	1 ⊢ 𝑆 ⊆ (ℂ ∖ (-∞(,]0))

Colors of variables: wff setvar class

Syntax hints: ¬ wn 3 ↔ wb 205 ∧ w3a 1088 = wceq 1542 ∈ wcel 2107 ∖ cdif 3946 ⊆ wss 3949 class class class wbr 5149 ∘ ccom 5681 ‘cfv 6544 (class class class)co 7409 ℂcc 11108 ℝcr 11109 0cc0 11110 1c1 11111 -∞cmnf 11246 ℝ^*cxr 11247 < clt 11248 ≤ cle 11249 − cmin 11444 (,]cioc 13325 abscabs 15181 ∞Metcxmet 20929 Metcmet 20930 ballcbl 20931

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2109 ax-9 2117 ax-10 2138 ax-11 2155 ax-12 2172 ax-ext 2704 ax-sep 5300 ax-nul 5307 ax-pow 5364 ax-pr 5428 ax-un 7725 ax-cnex 11166 ax-resscn 11167 ax-1cn 11168 ax-icn 11169 ax-addcl 11170 ax-addrcl 11171 ax-mulcl 11172 ax-mulrcl 11173 ax-mulcom 11174 ax-addass 11175 ax-mulass 11176 ax-distr 11177 ax-i2m1 11178 ax-1ne0 11179 ax-1rid 11180 ax-rnegex 11181 ax-rrecex 11182 ax-cnre 11183 ax-pre-lttri 11184 ax-pre-lttrn 11185 ax-pre-ltadd 11186 ax-pre-mulgt0 11187 ax-pre-sup 11188

This theorem depends on definitions: df-bi 206 df-an 398 df-or 847 df-3or 1089 df-3an 1090 df-tru 1545 df-fal 1555 df-ex 1783 df-nf 1787 df-sb 2069 df-mo 2535 df-eu 2564 df-clab 2711 df-cleq 2725 df-clel 2811 df-nfc 2886 df-ne 2942 df-nel 3048 df-ral 3063 df-rex 3072 df-rmo 3377 df-reu 3378 df-rab 3434 df-v 3477 df-sbc 3779 df-csb 3895 df-dif 3952 df-un 3954 df-in 3956 df-ss 3966 df-pss 3968 df-nul 4324 df-if 4530 df-pw 4605 df-sn 4630 df-pr 4632 df-op 4636 df-uni 4910 df-iun 5000 df-br 5150 df-opab 5212 df-mpt 5233 df-tr 5267 df-id 5575 df-eprel 5581 df-po 5589 df-so 5590 df-fr 5632 df-we 5634 df-xp 5683 df-rel 5684 df-cnv 5685 df-co 5686 df-dm 5687 df-rn 5688 df-res 5689 df-ima 5690 df-pred 6301 df-ord 6368 df-on 6369 df-lim 6370 df-suc 6371 df-iota 6496 df-fun 6546 df-fn 6547 df-f 6548 df-f1 6549 df-fo 6550 df-f1o 6551 df-fv 6552 df-riota 7365 df-ov 7412 df-oprab 7413 df-mpo 7414 df-om 7856 df-1st 7975 df-2nd 7976 df-frecs 8266 df-wrecs 8297 df-recs 8371 df-rdg 8410 df-er 8703 df-map 8822 df-en 8940 df-dom 8941 df-sdom 8942 df-sup 9437 df-pnf 11250 df-mnf 11251 df-xr 11252 df-ltxr 11253 df-le 11254 df-sub 11446 df-neg 11447 df-div 11872 df-nn 12213 df-2 12275 df-3 12276 df-n0 12473 df-z 12559 df-uz 12823 df-rp 12975 df-xadd 13093 df-ioc 13329 df-seq 13967 df-exp 14028 df-cj 15046 df-re 15047 df-im 15048 df-sqrt 15182 df-abs 15183 df-psmet 20936 df-xmet 20937 df-met 20938 df-bl 20939

This theorem is referenced by: dvlog2 26161 logtayl 26168 logtayl2 26170 efrlim 26474 lgamcvg2 26559

W3C validator