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Theorem pcmpt2 16822

Description: Dividing two prime count maps yields a number with all dividing primes confined to an interval. (Contributed by Mario Carneiro, 14-Mar-2014.)

**Hypotheses**
Ref	Expression
pcmpt.1	⊢ 𝐹 = (𝑛 ∈ ℕ ↦ if(𝑛 ∈ ℙ, (𝑛↑𝐴), 1))
pcmpt.2	⊢ (𝜑 → ∀𝑛 ∈ ℙ 𝐴 ∈ ℕ₀)
pcmpt.3	⊢ (𝜑 → 𝑁 ∈ ℕ)
pcmpt.4	⊢ (𝜑 → 𝑃 ∈ ℙ)
pcmpt.5	⊢ (𝑛 = 𝑃 → 𝐴 = 𝐵)
pcmpt2.6	⊢ (𝜑 → 𝑀 ∈ (ℤ_≥‘𝑁))

**Assertion**
Ref	Expression
pcmpt2	⊢ (𝜑 → (𝑃 pCnt ((seq1( · , 𝐹)‘𝑀) / (seq1( · , 𝐹)‘𝑁))) = if((𝑃 ≤ 𝑀 ∧ ¬ 𝑃 ≤ 𝑁), 𝐵, 0))

Distinct variable groups: 𝐵,𝑛 𝑃,𝑛 Allowed substitution hints: 𝜑(𝑛) 𝐴(𝑛) 𝐹(𝑛) 𝑀(𝑛) 𝑁(𝑛)

**Proof of Theorem pcmpt2**
Step	Hyp	Ref	Expression
1		pcmpt.4	. . 3 ⊢ (𝜑 → 𝑃 ∈ ℙ)
2		pcmpt.1	. . . . . . 7 ⊢ 𝐹 = (𝑛 ∈ ℕ ↦ if(𝑛 ∈ ℙ, (𝑛↑𝐴), 1))
3		pcmpt.2	. . . . . . 7 ⊢ (𝜑 → ∀𝑛 ∈ ℙ 𝐴 ∈ ℕ₀)
4	2, 3	pcmptcl 16820	. . . . . 6 ⊢ (𝜑 → (𝐹:ℕ⟶ℕ ∧ seq1( · , 𝐹):ℕ⟶ℕ))
5	4	simprd 496	. . . . 5 ⊢ (𝜑 → seq1( · , 𝐹):ℕ⟶ℕ)
6		pcmpt.3	. . . . . 6 ⊢ (𝜑 → 𝑁 ∈ ℕ)
7		pcmpt2.6	. . . . . 6 ⊢ (𝜑 → 𝑀 ∈ (ℤ_≥‘𝑁))
8		eluznn 12898	. . . . . 6 ⊢ ((𝑁 ∈ ℕ ∧ 𝑀 ∈ (ℤ_≥‘𝑁)) → 𝑀 ∈ ℕ)
9	6, 7, 8	syl2anc 584	. . . . 5 ⊢ (𝜑 → 𝑀 ∈ ℕ)
10	5, 9	ffvelcdmd 7084	. . . 4 ⊢ (𝜑 → (seq1( · , 𝐹)‘𝑀) ∈ ℕ)
11	10	nnzd 12581	. . 3 ⊢ (𝜑 → (seq1( · , 𝐹)‘𝑀) ∈ ℤ)
12	10	nnne0d 12258	. . 3 ⊢ (𝜑 → (seq1( · , 𝐹)‘𝑀) ≠ 0)
13	5, 6	ffvelcdmd 7084	. . 3 ⊢ (𝜑 → (seq1( · , 𝐹)‘𝑁) ∈ ℕ)
14		pcdiv 16781	. . 3 ⊢ ((𝑃 ∈ ℙ ∧ ((seq1( · , 𝐹)‘𝑀) ∈ ℤ ∧ (seq1( · , 𝐹)‘𝑀) ≠ 0) ∧ (seq1( · , 𝐹)‘𝑁) ∈ ℕ) → (𝑃 pCnt ((seq1( · , 𝐹)‘𝑀) / (seq1( · , 𝐹)‘𝑁))) = ((𝑃 pCnt (seq1( · , 𝐹)‘𝑀)) − (𝑃 pCnt (seq1( · , 𝐹)‘𝑁))))
15	1, 11, 12, 13, 14	syl121anc 1375	. 2 ⊢ (𝜑 → (𝑃 pCnt ((seq1( · , 𝐹)‘𝑀) / (seq1( · , 𝐹)‘𝑁))) = ((𝑃 pCnt (seq1( · , 𝐹)‘𝑀)) − (𝑃 pCnt (seq1( · , 𝐹)‘𝑁))))
16		pcmpt.5	. . . 4 ⊢ (𝑛 = 𝑃 → 𝐴 = 𝐵)
17	2, 3, 9, 1, 16	pcmpt 16821	. . 3 ⊢ (𝜑 → (𝑃 pCnt (seq1( · , 𝐹)‘𝑀)) = if(𝑃 ≤ 𝑀, 𝐵, 0))
18	2, 3, 6, 1, 16	pcmpt 16821	. . 3 ⊢ (𝜑 → (𝑃 pCnt (seq1( · , 𝐹)‘𝑁)) = if(𝑃 ≤ 𝑁, 𝐵, 0))
19	17, 18	oveq12d 7423	. 2 ⊢ (𝜑 → ((𝑃 pCnt (seq1( · , 𝐹)‘𝑀)) − (𝑃 pCnt (seq1( · , 𝐹)‘𝑁))) = (if(𝑃 ≤ 𝑀, 𝐵, 0) − if(𝑃 ≤ 𝑁, 𝐵, 0)))
20	16	eleq1d 2818	. . . . . . . 8 ⊢ (𝑛 = 𝑃 → (𝐴 ∈ ℕ₀ ↔ 𝐵 ∈ ℕ₀))
21	20, 3, 1	rspcdva 3613	. . . . . . 7 ⊢ (𝜑 → 𝐵 ∈ ℕ₀)
22	21	nn0cnd 12530	. . . . . 6 ⊢ (𝜑 → 𝐵 ∈ ℂ)
23	22	subidd 11555	. . . . 5 ⊢ (𝜑 → (𝐵 − 𝐵) = 0)
24	23	adantr 481	. . . 4 ⊢ ((𝜑 ∧ 𝑃 ≤ 𝑁) → (𝐵 − 𝐵) = 0)
25		prmnn 16607	. . . . . . . . . 10 ⊢ (𝑃 ∈ ℙ → 𝑃 ∈ ℕ)
26	1, 25	syl 17	. . . . . . . . 9 ⊢ (𝜑 → 𝑃 ∈ ℕ)
27	26	nnred 12223	. . . . . . . 8 ⊢ (𝜑 → 𝑃 ∈ ℝ)
28	27	adantr 481	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑃 ≤ 𝑁) → 𝑃 ∈ ℝ)
29	6	nnred 12223	. . . . . . . 8 ⊢ (𝜑 → 𝑁 ∈ ℝ)
30	29	adantr 481	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑃 ≤ 𝑁) → 𝑁 ∈ ℝ)
31	9	nnred 12223	. . . . . . . 8 ⊢ (𝜑 → 𝑀 ∈ ℝ)
32	31	adantr 481	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑃 ≤ 𝑁) → 𝑀 ∈ ℝ)
33		simpr 485	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑃 ≤ 𝑁) → 𝑃 ≤ 𝑁)
34		eluzle 12831	. . . . . . . . 9 ⊢ (𝑀 ∈ (ℤ_≥‘𝑁) → 𝑁 ≤ 𝑀)
35	7, 34	syl 17	. . . . . . . 8 ⊢ (𝜑 → 𝑁 ≤ 𝑀)
36	35	adantr 481	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑃 ≤ 𝑁) → 𝑁 ≤ 𝑀)
37	28, 30, 32, 33, 36	letrd 11367	. . . . . 6 ⊢ ((𝜑 ∧ 𝑃 ≤ 𝑁) → 𝑃 ≤ 𝑀)
38	37	iftrued 4535	. . . . 5 ⊢ ((𝜑 ∧ 𝑃 ≤ 𝑁) → if(𝑃 ≤ 𝑀, 𝐵, 0) = 𝐵)
39		iftrue 4533	. . . . . 6 ⊢ (𝑃 ≤ 𝑁 → if(𝑃 ≤ 𝑁, 𝐵, 0) = 𝐵)
40	39	adantl 482	. . . . 5 ⊢ ((𝜑 ∧ 𝑃 ≤ 𝑁) → if(𝑃 ≤ 𝑁, 𝐵, 0) = 𝐵)
41	38, 40	oveq12d 7423	. . . 4 ⊢ ((𝜑 ∧ 𝑃 ≤ 𝑁) → (if(𝑃 ≤ 𝑀, 𝐵, 0) − if(𝑃 ≤ 𝑁, 𝐵, 0)) = (𝐵 − 𝐵))
42		simpr 485	. . . . . 6 ⊢ ((𝑃 ≤ 𝑀 ∧ ¬ 𝑃 ≤ 𝑁) → ¬ 𝑃 ≤ 𝑁)
43	42, 33	nsyl3 138	. . . . 5 ⊢ ((𝜑 ∧ 𝑃 ≤ 𝑁) → ¬ (𝑃 ≤ 𝑀 ∧ ¬ 𝑃 ≤ 𝑁))
44	43	iffalsed 4538	. . . 4 ⊢ ((𝜑 ∧ 𝑃 ≤ 𝑁) → if((𝑃 ≤ 𝑀 ∧ ¬ 𝑃 ≤ 𝑁), 𝐵, 0) = 0)
45	24, 41, 44	3eqtr4d 2782	. . 3 ⊢ ((𝜑 ∧ 𝑃 ≤ 𝑁) → (if(𝑃 ≤ 𝑀, 𝐵, 0) − if(𝑃 ≤ 𝑁, 𝐵, 0)) = if((𝑃 ≤ 𝑀 ∧ ¬ 𝑃 ≤ 𝑁), 𝐵, 0))
46		iffalse 4536	. . . . . 6 ⊢ (¬ 𝑃 ≤ 𝑁 → if(𝑃 ≤ 𝑁, 𝐵, 0) = 0)
47	46	oveq2d 7421	. . . . 5 ⊢ (¬ 𝑃 ≤ 𝑁 → (if(𝑃 ≤ 𝑀, 𝐵, 0) − if(𝑃 ≤ 𝑁, 𝐵, 0)) = (if(𝑃 ≤ 𝑀, 𝐵, 0) − 0))
48		0cn 11202	. . . . . . 7 ⊢ 0 ∈ ℂ
49		ifcl 4572	. . . . . . 7 ⊢ ((𝐵 ∈ ℂ ∧ 0 ∈ ℂ) → if(𝑃 ≤ 𝑀, 𝐵, 0) ∈ ℂ)
50	22, 48, 49	sylancl 586	. . . . . 6 ⊢ (𝜑 → if(𝑃 ≤ 𝑀, 𝐵, 0) ∈ ℂ)
51	50	subid1d 11556	. . . . 5 ⊢ (𝜑 → (if(𝑃 ≤ 𝑀, 𝐵, 0) − 0) = if(𝑃 ≤ 𝑀, 𝐵, 0))
52	47, 51	sylan9eqr 2794	. . . 4 ⊢ ((𝜑 ∧ ¬ 𝑃 ≤ 𝑁) → (if(𝑃 ≤ 𝑀, 𝐵, 0) − if(𝑃 ≤ 𝑁, 𝐵, 0)) = if(𝑃 ≤ 𝑀, 𝐵, 0))
53		simpr 485	. . . . . 6 ⊢ ((𝜑 ∧ ¬ 𝑃 ≤ 𝑁) → ¬ 𝑃 ≤ 𝑁)
54	53	biantrud 532	. . . . 5 ⊢ ((𝜑 ∧ ¬ 𝑃 ≤ 𝑁) → (𝑃 ≤ 𝑀 ↔ (𝑃 ≤ 𝑀 ∧ ¬ 𝑃 ≤ 𝑁)))
55	54	ifbid 4550	. . . 4 ⊢ ((𝜑 ∧ ¬ 𝑃 ≤ 𝑁) → if(𝑃 ≤ 𝑀, 𝐵, 0) = if((𝑃 ≤ 𝑀 ∧ ¬ 𝑃 ≤ 𝑁), 𝐵, 0))
56	52, 55	eqtrd 2772	. . 3 ⊢ ((𝜑 ∧ ¬ 𝑃 ≤ 𝑁) → (if(𝑃 ≤ 𝑀, 𝐵, 0) − if(𝑃 ≤ 𝑁, 𝐵, 0)) = if((𝑃 ≤ 𝑀 ∧ ¬ 𝑃 ≤ 𝑁), 𝐵, 0))
57	45, 56	pm2.61dan 811	. 2 ⊢ (𝜑 → (if(𝑃 ≤ 𝑀, 𝐵, 0) − if(𝑃 ≤ 𝑁, 𝐵, 0)) = if((𝑃 ≤ 𝑀 ∧ ¬ 𝑃 ≤ 𝑁), 𝐵, 0))
58	15, 19, 57	3eqtrd 2776	1 ⊢ (𝜑 → (𝑃 pCnt ((seq1( · , 𝐹)‘𝑀) / (seq1( · , 𝐹)‘𝑁))) = if((𝑃 ≤ 𝑀 ∧ ¬ 𝑃 ≤ 𝑁), 𝐵, 0))

Colors of variables: wff setvar class

Syntax hints: ¬ wn 3 → wi 4 ∧ wa 396 = wceq 1541 ∈ wcel 2106 ≠ wne 2940 ∀wral 3061 ifcif 4527 class class class wbr 5147 ↦ cmpt 5230 ⟶wf 6536 ‘cfv 6540 (class class class)co 7405 ℂcc 11104 ℝcr 11105 0cc0 11106 1c1 11107 · cmul 11111 ≤ cle 11245 − cmin 11440 / cdiv 11867 ℕcn 12208 ℕ₀cn0 12468 ℤcz 12554 ℤ_≥cuz 12818 seqcseq 13962 ↑cexp 14023 ℙcprime 16604 pCnt cpc 16765

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 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2703 ax-sep 5298 ax-nul 5305 ax-pow 5362 ax-pr 5426 ax-un 7721 ax-cnex 11162 ax-resscn 11163 ax-1cn 11164 ax-icn 11165 ax-addcl 11166 ax-addrcl 11167 ax-mulcl 11168 ax-mulrcl 11169 ax-mulcom 11170 ax-addass 11171 ax-mulass 11172 ax-distr 11173 ax-i2m1 11174 ax-1ne0 11175 ax-1rid 11176 ax-rnegex 11177 ax-rrecex 11178 ax-cnre 11179 ax-pre-lttri 11180 ax-pre-lttrn 11181 ax-pre-ltadd 11182 ax-pre-mulgt0 11183 ax-pre-sup 11184

This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2534 df-eu 2563 df-clab 2710 df-cleq 2724 df-clel 2810 df-nfc 2885 df-ne 2941 df-nel 3047 df-ral 3062 df-rex 3071 df-rmo 3376 df-reu 3377 df-rab 3433 df-v 3476 df-sbc 3777 df-csb 3893 df-dif 3950 df-un 3952 df-in 3954 df-ss 3964 df-pss 3966 df-nul 4322 df-if 4528 df-pw 4603 df-sn 4628 df-pr 4630 df-op 4634 df-uni 4908 df-iun 4998 df-br 5148 df-opab 5210 df-mpt 5231 df-tr 5265 df-id 5573 df-eprel 5579 df-po 5587 df-so 5588 df-fr 5630 df-we 5632 df-xp 5681 df-rel 5682 df-cnv 5683 df-co 5684 df-dm 5685 df-rn 5686 df-res 5687 df-ima 5688 df-pred 6297 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6492 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-riota 7361 df-ov 7408 df-oprab 7409 df-mpo 7410 df-om 7852 df-1st 7971 df-2nd 7972 df-frecs 8262 df-wrecs 8293 df-recs 8367 df-rdg 8406 df-1o 8462 df-2o 8463 df-er 8699 df-en 8936 df-dom 8937 df-sdom 8938 df-fin 8939 df-sup 9433 df-inf 9434 df-pnf 11246 df-mnf 11247 df-xr 11248 df-ltxr 11249 df-le 11250 df-sub 11442 df-neg 11443 df-div 11868 df-nn 12209 df-2 12271 df-3 12272 df-n0 12469 df-z 12555 df-uz 12819 df-q 12929 df-rp 12971 df-fz 13481 df-fl 13753 df-mod 13831 df-seq 13963 df-exp 14024 df-cj 15042 df-re 15043 df-im 15044 df-sqrt 15178 df-abs 15179 df-dvds 16194 df-gcd 16432 df-prm 16605 df-pc 16766

This theorem is referenced by: pcmptdvds 16823 bposlem6 26781

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