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Theorem pcmpt2 16826

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 16824	. . . . . 6 ⊢ (𝜑 → (𝐹:ℕ⟶ℕ ∧ seq1( · , 𝐹):ℕ⟶ℕ))
5	4	simprd 497	. . . . 5 ⊢ (𝜑 → seq1( · , 𝐹):ℕ⟶ℕ)
6		pcmpt.3	. . . . . 6 ⊢ (𝜑 → 𝑁 ∈ ℕ)
7		pcmpt2.6	. . . . . 6 ⊢ (𝜑 → 𝑀 ∈ (ℤ_≥‘𝑁))
8		eluznn 12902	. . . . . 6 ⊢ ((𝑁 ∈ ℕ ∧ 𝑀 ∈ (ℤ_≥‘𝑁)) → 𝑀 ∈ ℕ)
9	6, 7, 8	syl2anc 585	. . . . 5 ⊢ (𝜑 → 𝑀 ∈ ℕ)
10	5, 9	ffvelcdmd 7088	. . . 4 ⊢ (𝜑 → (seq1( · , 𝐹)‘𝑀) ∈ ℕ)
11	10	nnzd 12585	. . 3 ⊢ (𝜑 → (seq1( · , 𝐹)‘𝑀) ∈ ℤ)
12	10	nnne0d 12262	. . 3 ⊢ (𝜑 → (seq1( · , 𝐹)‘𝑀) ≠ 0)
13	5, 6	ffvelcdmd 7088	. . 3 ⊢ (𝜑 → (seq1( · , 𝐹)‘𝑁) ∈ ℕ)
14		pcdiv 16785	. . 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 1376	. 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 16825	. . 3 ⊢ (𝜑 → (𝑃 pCnt (seq1( · , 𝐹)‘𝑀)) = if(𝑃 ≤ 𝑀, 𝐵, 0))
18	2, 3, 6, 1, 16	pcmpt 16825	. . 3 ⊢ (𝜑 → (𝑃 pCnt (seq1( · , 𝐹)‘𝑁)) = if(𝑃 ≤ 𝑁, 𝐵, 0))
19	17, 18	oveq12d 7427	. 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 2819	. . . . . . . 8 ⊢ (𝑛 = 𝑃 → (𝐴 ∈ ℕ₀ ↔ 𝐵 ∈ ℕ₀))
21	20, 3, 1	rspcdva 3614	. . . . . . 7 ⊢ (𝜑 → 𝐵 ∈ ℕ₀)
22	21	nn0cnd 12534	. . . . . 6 ⊢ (𝜑 → 𝐵 ∈ ℂ)
23	22	subidd 11559	. . . . 5 ⊢ (𝜑 → (𝐵 − 𝐵) = 0)
24	23	adantr 482	. . . 4 ⊢ ((𝜑 ∧ 𝑃 ≤ 𝑁) → (𝐵 − 𝐵) = 0)
25		prmnn 16611	. . . . . . . . . 10 ⊢ (𝑃 ∈ ℙ → 𝑃 ∈ ℕ)
26	1, 25	syl 17	. . . . . . . . 9 ⊢ (𝜑 → 𝑃 ∈ ℕ)
27	26	nnred 12227	. . . . . . . 8 ⊢ (𝜑 → 𝑃 ∈ ℝ)
28	27	adantr 482	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑃 ≤ 𝑁) → 𝑃 ∈ ℝ)
29	6	nnred 12227	. . . . . . . 8 ⊢ (𝜑 → 𝑁 ∈ ℝ)
30	29	adantr 482	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑃 ≤ 𝑁) → 𝑁 ∈ ℝ)
31	9	nnred 12227	. . . . . . . 8 ⊢ (𝜑 → 𝑀 ∈ ℝ)
32	31	adantr 482	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑃 ≤ 𝑁) → 𝑀 ∈ ℝ)
33		simpr 486	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑃 ≤ 𝑁) → 𝑃 ≤ 𝑁)
34		eluzle 12835	. . . . . . . . 9 ⊢ (𝑀 ∈ (ℤ_≥‘𝑁) → 𝑁 ≤ 𝑀)
35	7, 34	syl 17	. . . . . . . 8 ⊢ (𝜑 → 𝑁 ≤ 𝑀)
36	35	adantr 482	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑃 ≤ 𝑁) → 𝑁 ≤ 𝑀)
37	28, 30, 32, 33, 36	letrd 11371	. . . . . 6 ⊢ ((𝜑 ∧ 𝑃 ≤ 𝑁) → 𝑃 ≤ 𝑀)
38	37	iftrued 4537	. . . . 5 ⊢ ((𝜑 ∧ 𝑃 ≤ 𝑁) → if(𝑃 ≤ 𝑀, 𝐵, 0) = 𝐵)
39		iftrue 4535	. . . . . 6 ⊢ (𝑃 ≤ 𝑁 → if(𝑃 ≤ 𝑁, 𝐵, 0) = 𝐵)
40	39	adantl 483	. . . . 5 ⊢ ((𝜑 ∧ 𝑃 ≤ 𝑁) → if(𝑃 ≤ 𝑁, 𝐵, 0) = 𝐵)
41	38, 40	oveq12d 7427	. . . 4 ⊢ ((𝜑 ∧ 𝑃 ≤ 𝑁) → (if(𝑃 ≤ 𝑀, 𝐵, 0) − if(𝑃 ≤ 𝑁, 𝐵, 0)) = (𝐵 − 𝐵))
42		simpr 486	. . . . . 6 ⊢ ((𝑃 ≤ 𝑀 ∧ ¬ 𝑃 ≤ 𝑁) → ¬ 𝑃 ≤ 𝑁)
43	42, 33	nsyl3 138	. . . . 5 ⊢ ((𝜑 ∧ 𝑃 ≤ 𝑁) → ¬ (𝑃 ≤ 𝑀 ∧ ¬ 𝑃 ≤ 𝑁))
44	43	iffalsed 4540	. . . 4 ⊢ ((𝜑 ∧ 𝑃 ≤ 𝑁) → if((𝑃 ≤ 𝑀 ∧ ¬ 𝑃 ≤ 𝑁), 𝐵, 0) = 0)
45	24, 41, 44	3eqtr4d 2783	. . 3 ⊢ ((𝜑 ∧ 𝑃 ≤ 𝑁) → (if(𝑃 ≤ 𝑀, 𝐵, 0) − if(𝑃 ≤ 𝑁, 𝐵, 0)) = if((𝑃 ≤ 𝑀 ∧ ¬ 𝑃 ≤ 𝑁), 𝐵, 0))
46		iffalse 4538	. . . . . 6 ⊢ (¬ 𝑃 ≤ 𝑁 → if(𝑃 ≤ 𝑁, 𝐵, 0) = 0)
47	46	oveq2d 7425	. . . . 5 ⊢ (¬ 𝑃 ≤ 𝑁 → (if(𝑃 ≤ 𝑀, 𝐵, 0) − if(𝑃 ≤ 𝑁, 𝐵, 0)) = (if(𝑃 ≤ 𝑀, 𝐵, 0) − 0))
48		0cn 11206	. . . . . . 7 ⊢ 0 ∈ ℂ
49		ifcl 4574	. . . . . . 7 ⊢ ((𝐵 ∈ ℂ ∧ 0 ∈ ℂ) → if(𝑃 ≤ 𝑀, 𝐵, 0) ∈ ℂ)
50	22, 48, 49	sylancl 587	. . . . . 6 ⊢ (𝜑 → if(𝑃 ≤ 𝑀, 𝐵, 0) ∈ ℂ)
51	50	subid1d 11560	. . . . 5 ⊢ (𝜑 → (if(𝑃 ≤ 𝑀, 𝐵, 0) − 0) = if(𝑃 ≤ 𝑀, 𝐵, 0))
52	47, 51	sylan9eqr 2795	. . . 4 ⊢ ((𝜑 ∧ ¬ 𝑃 ≤ 𝑁) → (if(𝑃 ≤ 𝑀, 𝐵, 0) − if(𝑃 ≤ 𝑁, 𝐵, 0)) = if(𝑃 ≤ 𝑀, 𝐵, 0))
53		simpr 486	. . . . . 6 ⊢ ((𝜑 ∧ ¬ 𝑃 ≤ 𝑁) → ¬ 𝑃 ≤ 𝑁)
54	53	biantrud 533	. . . . 5 ⊢ ((𝜑 ∧ ¬ 𝑃 ≤ 𝑁) → (𝑃 ≤ 𝑀 ↔ (𝑃 ≤ 𝑀 ∧ ¬ 𝑃 ≤ 𝑁)))
55	54	ifbid 4552	. . . 4 ⊢ ((𝜑 ∧ ¬ 𝑃 ≤ 𝑁) → if(𝑃 ≤ 𝑀, 𝐵, 0) = if((𝑃 ≤ 𝑀 ∧ ¬ 𝑃 ≤ 𝑁), 𝐵, 0))
56	52, 55	eqtrd 2773	. . 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 812	. 2 ⊢ (𝜑 → (if(𝑃 ≤ 𝑀, 𝐵, 0) − if(𝑃 ≤ 𝑁, 𝐵, 0)) = if((𝑃 ≤ 𝑀 ∧ ¬ 𝑃 ≤ 𝑁), 𝐵, 0))
58	15, 19, 57	3eqtrd 2777	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 397 = wceq 1542 ∈ wcel 2107 ≠ wne 2941 ∀wral 3062 ifcif 4529 class class class wbr 5149 ↦ cmpt 5232 ⟶wf 6540 ‘cfv 6544 (class class class)co 7409 ℂcc 11108 ℝcr 11109 0cc0 11110 1c1 11111 · cmul 11115 ≤ cle 11249 − cmin 11444 / cdiv 11871 ℕcn 12212 ℕ₀cn0 12472 ℤcz 12558 ℤ_≥cuz 12822 seqcseq 13966 ↑cexp 14027 ℙcprime 16608 pCnt cpc 16769

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-1o 8466 df-2o 8467 df-er 8703 df-en 8940 df-dom 8941 df-sdom 8942 df-fin 8943 df-sup 9437 df-inf 9438 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-q 12933 df-rp 12975 df-fz 13485 df-fl 13757 df-mod 13835 df-seq 13967 df-exp 14028 df-cj 15046 df-re 15047 df-im 15048 df-sqrt 15182 df-abs 15183 df-dvds 16198 df-gcd 16436 df-prm 16609 df-pc 16770

This theorem is referenced by: pcmptdvds 16827 bposlem6 26792

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