knoppndvlem22 - Mathbox for Asger C. Ipsen

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Theorem knoppndvlem22 36812

Description: Lemma for knoppndv 36813. (Contributed by Asger C. Ipsen, 19-Aug-2021.)

**Hypotheses**
Ref	Expression
knoppndvlem22.t	⊢ 𝑇 = (𝑥 ∈ ℝ ↦ (abs‘((⌊‘(𝑥 + (1 / 2))) − 𝑥)))
knoppndvlem22.f	⊢ 𝐹 = (𝑦 ∈ ℝ ↦ (𝑛 ∈ ℕ₀ ↦ ((𝐶↑𝑛) · (𝑇‘(((2 · 𝑁)↑𝑛) · 𝑦)))))
knoppndvlem22.w	⊢ 𝑊 = (𝑤 ∈ ℝ ↦ Σ𝑖 ∈ ℕ₀ ((𝐹‘𝑤)‘𝑖))
knoppndvlem22.c	⊢ (𝜑 → 𝐶 ∈ (-1(,)1))
knoppndvlem22.d	⊢ (𝜑 → 𝐷 ∈ ℝ⁺)
knoppndvlem22.e	⊢ (𝜑 → 𝐸 ∈ ℝ⁺)
knoppndvlem22.h	⊢ (𝜑 → 𝐻 ∈ ℝ)
knoppndvlem22.n	⊢ (𝜑 → 𝑁 ∈ ℕ)
knoppndvlem22.1	⊢ (𝜑 → 1 < (𝑁 · (abs‘𝐶)))

**Assertion**
Ref	Expression
knoppndvlem22	⊢ (𝜑 → ∃𝑎 ∈ ℝ ∃𝑏 ∈ ℝ ((𝑎 ≤ 𝐻 ∧ 𝐻 ≤ 𝑏) ∧ ((𝑏 − 𝑎) < 𝐷 ∧ 𝑎 ≠ 𝑏) ∧ 𝐸 ≤ ((abs‘((𝑊‘𝑏) − (𝑊‘𝑎))) / (𝑏 − 𝑎))))

Distinct variable groups: 𝐶,𝑖,𝑛,𝑤,𝑦 𝐷,𝑎,𝑏 𝐷,𝑖,𝑛,𝑤,𝑦 𝐸,𝑎,𝑏 𝑖,𝐸,𝑛,𝑤,𝑦 𝑖,𝐹,𝑤 𝐻,𝑎,𝑏 𝑁,𝑎,𝑏 𝑖,𝑁,𝑛,𝑤,𝑦 𝑥,𝑁,𝑖,𝑤 𝑇,𝑛,𝑦 𝑊,𝑎,𝑏 𝜑,𝑖,𝑛,𝑤,𝑦 Allowed substitution hints: 𝜑(𝑥,𝑎,𝑏) 𝐶(𝑥,𝑎,𝑏) 𝐷(𝑥) 𝑇(𝑥,𝑤,𝑖,𝑎,𝑏) 𝐸(𝑥) 𝐹(𝑥,𝑦,𝑛,𝑎,𝑏) 𝐻(𝑥,𝑦,𝑤,𝑖,𝑛) 𝑊(𝑥,𝑦,𝑤,𝑖,𝑛)

Proof of Theorem knoppndvlem22 Dummy variable 𝑗 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		knoppndvlem22.c	. . 3 ⊢ (𝜑 → 𝐶 ∈ (-1(,)1))
2		knoppndvlem22.n	. . 3 ⊢ (𝜑 → 𝑁 ∈ ℕ)
3		knoppndvlem22.d	. . 3 ⊢ (𝜑 → 𝐷 ∈ ℝ⁺)
4		knoppndvlem22.e	. . 3 ⊢ (𝜑 → 𝐸 ∈ ℝ⁺)
5		knoppndvlem22.1	. . . 4 ⊢ (𝜑 → 1 < (𝑁 · (abs‘𝐶)))
6	1, 2, 5	knoppndvlem20 36810	. . 3 ⊢ (𝜑 → (1 − (1 / (((2 · 𝑁) · (abs‘𝐶)) − 1))) ∈ ℝ⁺)
7	1, 2, 3, 4, 6, 5	knoppndvlem18 36808	. 2 ⊢ (𝜑 → ∃𝑗 ∈ ℕ₀ ((((2 · 𝑁)↑-𝑗) / 2) < 𝐷 ∧ 𝐸 ≤ ((((2 · 𝑁) · (abs‘𝐶))↑𝑗) · (1 − (1 / (((2 · 𝑁) · (abs‘𝐶)) − 1))))))
8		knoppndvlem22.t	. . 3 ⊢ 𝑇 = (𝑥 ∈ ℝ ↦ (abs‘((⌊‘(𝑥 + (1 / 2))) − 𝑥)))
9		knoppndvlem22.f	. . 3 ⊢ 𝐹 = (𝑦 ∈ ℝ ↦ (𝑛 ∈ ℕ₀ ↦ ((𝐶↑𝑛) · (𝑇‘(((2 · 𝑁)↑𝑛) · 𝑦)))))
10		knoppndvlem22.w	. . 3 ⊢ 𝑊 = (𝑤 ∈ ℝ ↦ Σ𝑖 ∈ ℕ₀ ((𝐹‘𝑤)‘𝑖))
11		eqid 2737	. . 3 ⊢ (1 − (1 / (((2 · 𝑁) · (abs‘𝐶)) − 1))) = (1 − (1 / (((2 · 𝑁) · (abs‘𝐶)) − 1)))
12	1	adantr 480	. . 3 ⊢ ((𝜑 ∧ (𝑗 ∈ ℕ₀ ∧ ((((2 · 𝑁)↑-𝑗) / 2) < 𝐷 ∧ 𝐸 ≤ ((((2 · 𝑁) · (abs‘𝐶))↑𝑗) · (1 − (1 / (((2 · 𝑁) · (abs‘𝐶)) − 1))))))) → 𝐶 ∈ (-1(,)1))
13	3	adantr 480	. . 3 ⊢ ((𝜑 ∧ (𝑗 ∈ ℕ₀ ∧ ((((2 · 𝑁)↑-𝑗) / 2) < 𝐷 ∧ 𝐸 ≤ ((((2 · 𝑁) · (abs‘𝐶))↑𝑗) · (1 − (1 / (((2 · 𝑁) · (abs‘𝐶)) − 1))))))) → 𝐷 ∈ ℝ⁺)
14	4	adantr 480	. . 3 ⊢ ((𝜑 ∧ (𝑗 ∈ ℕ₀ ∧ ((((2 · 𝑁)↑-𝑗) / 2) < 𝐷 ∧ 𝐸 ≤ ((((2 · 𝑁) · (abs‘𝐶))↑𝑗) · (1 − (1 / (((2 · 𝑁) · (abs‘𝐶)) − 1))))))) → 𝐸 ∈ ℝ⁺)
15		knoppndvlem22.h	. . . 4 ⊢ (𝜑 → 𝐻 ∈ ℝ)
16	15	adantr 480	. . 3 ⊢ ((𝜑 ∧ (𝑗 ∈ ℕ₀ ∧ ((((2 · 𝑁)↑-𝑗) / 2) < 𝐷 ∧ 𝐸 ≤ ((((2 · 𝑁) · (abs‘𝐶))↑𝑗) · (1 − (1 / (((2 · 𝑁) · (abs‘𝐶)) − 1))))))) → 𝐻 ∈ ℝ)
17		simprl 771	. . 3 ⊢ ((𝜑 ∧ (𝑗 ∈ ℕ₀ ∧ ((((2 · 𝑁)↑-𝑗) / 2) < 𝐷 ∧ 𝐸 ≤ ((((2 · 𝑁) · (abs‘𝐶))↑𝑗) · (1 − (1 / (((2 · 𝑁) · (abs‘𝐶)) − 1))))))) → 𝑗 ∈ ℕ₀)
18	2	adantr 480	. . 3 ⊢ ((𝜑 ∧ (𝑗 ∈ ℕ₀ ∧ ((((2 · 𝑁)↑-𝑗) / 2) < 𝐷 ∧ 𝐸 ≤ ((((2 · 𝑁) · (abs‘𝐶))↑𝑗) · (1 − (1 / (((2 · 𝑁) · (abs‘𝐶)) − 1))))))) → 𝑁 ∈ ℕ)
19	5	adantr 480	. . 3 ⊢ ((𝜑 ∧ (𝑗 ∈ ℕ₀ ∧ ((((2 · 𝑁)↑-𝑗) / 2) < 𝐷 ∧ 𝐸 ≤ ((((2 · 𝑁) · (abs‘𝐶))↑𝑗) · (1 − (1 / (((2 · 𝑁) · (abs‘𝐶)) − 1))))))) → 1 < (𝑁 · (abs‘𝐶)))
20		simprrl 781	. . 3 ⊢ ((𝜑 ∧ (𝑗 ∈ ℕ₀ ∧ ((((2 · 𝑁)↑-𝑗) / 2) < 𝐷 ∧ 𝐸 ≤ ((((2 · 𝑁) · (abs‘𝐶))↑𝑗) · (1 − (1 / (((2 · 𝑁) · (abs‘𝐶)) − 1))))))) → (((2 · 𝑁)↑-𝑗) / 2) < 𝐷)
21		simprrr 782	. . 3 ⊢ ((𝜑 ∧ (𝑗 ∈ ℕ₀ ∧ ((((2 · 𝑁)↑-𝑗) / 2) < 𝐷 ∧ 𝐸 ≤ ((((2 · 𝑁) · (abs‘𝐶))↑𝑗) · (1 − (1 / (((2 · 𝑁) · (abs‘𝐶)) − 1))))))) → 𝐸 ≤ ((((2 · 𝑁) · (abs‘𝐶))↑𝑗) · (1 − (1 / (((2 · 𝑁) · (abs‘𝐶)) − 1)))))
22	8, 9, 10, 11, 12, 13, 14, 16, 17, 18, 19, 20, 21	knoppndvlem21 36811	. 2 ⊢ ((𝜑 ∧ (𝑗 ∈ ℕ₀ ∧ ((((2 · 𝑁)↑-𝑗) / 2) < 𝐷 ∧ 𝐸 ≤ ((((2 · 𝑁) · (abs‘𝐶))↑𝑗) · (1 − (1 / (((2 · 𝑁) · (abs‘𝐶)) − 1))))))) → ∃𝑎 ∈ ℝ ∃𝑏 ∈ ℝ ((𝑎 ≤ 𝐻 ∧ 𝐻 ≤ 𝑏) ∧ ((𝑏 − 𝑎) < 𝐷 ∧ 𝑎 ≠ 𝑏) ∧ 𝐸 ≤ ((abs‘((𝑊‘𝑏) − (𝑊‘𝑎))) / (𝑏 − 𝑎))))
23	7, 22	rexlimddv 3145	1 ⊢ (𝜑 → ∃𝑎 ∈ ℝ ∃𝑏 ∈ ℝ ((𝑎 ≤ 𝐻 ∧ 𝐻 ≤ 𝑏) ∧ ((𝑏 − 𝑎) < 𝐷 ∧ 𝑎 ≠ 𝑏) ∧ 𝐸 ≤ ((abs‘((𝑊‘𝑏) − (𝑊‘𝑎))) / (𝑏 − 𝑎))))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ wa 395 ∧ w3a 1087 = wceq 1542 ∈ wcel 2114 ≠ wne 2933 ∃wrex 3062 class class class wbr 5086 ↦ cmpt 5167 ‘cfv 6493 (class class class)co 7361 ℝcr 11031 1c1 11033 + caddc 11035 · cmul 11037 < clt 11173 ≤ cle 11174 − cmin 11371 -cneg 11372 / cdiv 11801 ℕcn 12168 2c2 12230 ℕ₀cn0 12431 ℝ⁺crp 12936 (,)cioo 13292 ⌊cfl 13743 ↑cexp 14017 abscabs 15190 Σcsu 15642

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 5213 ax-sep 5232 ax-nul 5242 ax-pow 5303 ax-pr 5371 ax-un 7683 ax-inf2 9556 ax-cnex 11088 ax-resscn 11089 ax-1cn 11090 ax-icn 11091 ax-addcl 11092 ax-addrcl 11093 ax-mulcl 11094 ax-mulrcl 11095 ax-mulcom 11096 ax-addass 11097 ax-mulass 11098 ax-distr 11099 ax-i2m1 11100 ax-1ne0 11101 ax-1rid 11102 ax-rnegex 11103 ax-rrecex 11104 ax-cnre 11105 ax-pre-lttri 11106 ax-pre-lttrn 11107 ax-pre-ltadd 11108 ax-pre-mulgt0 11109 ax-pre-sup 11110 ax-addf 11111

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 3343 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-tp 4573 df-op 4575 df-uni 4852 df-int 4891 df-iun 4936 df-iin 4937 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5520 df-eprel 5525 df-po 5533 df-so 5534 df-fr 5578 df-se 5579 df-we 5580 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-res 5637 df-ima 5638 df-pred 6260 df-ord 6321 df-on 6322 df-lim 6323 df-suc 6324 df-iota 6449 df-fun 6495 df-fn 6496 df-f 6497 df-f1 6498 df-fo 6499 df-f1o 6500 df-fv 6501 df-isom 6502 df-riota 7318 df-ov 7364 df-oprab 7365 df-mpo 7366 df-of 7625 df-om 7812 df-1st 7936 df-2nd 7937 df-supp 8105 df-frecs 8225 df-wrecs 8256 df-recs 8305 df-rdg 8343 df-1o 8399 df-2o 8400 df-er 8637 df-map 8769 df-pm 8770 df-ixp 8840 df-en 8888 df-dom 8889 df-sdom 8890 df-fin 8891 df-fsupp 9269 df-fi 9318 df-sup 9349 df-inf 9350 df-oi 9419 df-card 9857 df-pnf 11175 df-mnf 11176 df-xr 11177 df-ltxr 11178 df-le 11179 df-sub 11373 df-neg 11374 df-div 11802 df-nn 12169 df-2 12238 df-3 12239 df-4 12240 df-5 12241 df-6 12242 df-7 12243 df-8 12244 df-9 12245 df-n0 12432 df-z 12519 df-dec 12639 df-uz 12783 df-q 12893 df-rp 12937 df-xneg 13057 df-xadd 13058 df-xmul 13059 df-ioo 13296 df-ico 13298 df-icc 13299 df-fz 13456 df-fzo 13603 df-fl 13745 df-seq 13958 df-exp 14018 df-hash 14287 df-cj 15055 df-re 15056 df-im 15057 df-sqrt 15191 df-abs 15192 df-limsup 15427 df-clim 15444 df-rlim 15445 df-sum 15643 df-dvds 16216 df-struct 17111 df-sets 17128 df-slot 17146 df-ndx 17158 df-base 17174 df-ress 17195 df-plusg 17227 df-mulr 17228 df-starv 17229 df-sca 17230 df-vsca 17231 df-ip 17232 df-tset 17233 df-ple 17234 df-ds 17236 df-unif 17237 df-hom 17238 df-cco 17239 df-rest 17379 df-topn 17380 df-0g 17398 df-gsum 17399 df-topgen 17400 df-pt 17401 df-prds 17404 df-xrs 17460 df-qtop 17465 df-imas 17466 df-xps 17468 df-mre 17542 df-mrc 17543 df-acs 17545 df-mgm 18602 df-sgrp 18681 df-mnd 18697 df-submnd 18746 df-mulg 19038 df-cntz 19286 df-cmn 19751 df-psmet 21339 df-xmet 21340 df-met 21341 df-bl 21342 df-mopn 21343 df-cnfld 21348 df-top 22872 df-topon 22889 df-topsp 22911 df-bases 22924 df-cn 23205 df-cnp 23206 df-tx 23540 df-hmeo 23733 df-xms 24298 df-ms 24299 df-tms 24300 df-cncf 24858 df-ulm 26358

This theorem is referenced by: knoppndv 36813

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