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Mirrors > Home > MPE Home > Th. List > ppinncl | Structured version Visualization version GIF version |
Description: Closure of the prime-counting function π in the positive integers. (Contributed by Mario Carneiro, 21-Sep-2014.) |
Ref | Expression |
---|---|
ppinncl | ⊢ ((𝐴 ∈ ℝ ∧ 2 ≤ 𝐴) → (π‘𝐴) ∈ ℕ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ppicl 25716 | . . . 4 ⊢ (𝐴 ∈ ℝ → (π‘𝐴) ∈ ℕ0) | |
2 | 1 | adantr 484 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 2 ≤ 𝐴) → (π‘𝐴) ∈ ℕ0) |
3 | 2 | nn0zd 12073 | . 2 ⊢ ((𝐴 ∈ ℝ ∧ 2 ≤ 𝐴) → (π‘𝐴) ∈ ℤ) |
4 | ppi2 25755 | . . 3 ⊢ (π‘2) = 1 | |
5 | 2re 11699 | . . . 4 ⊢ 2 ∈ ℝ | |
6 | ppiwordi 25747 | . . . 4 ⊢ ((2 ∈ ℝ ∧ 𝐴 ∈ ℝ ∧ 2 ≤ 𝐴) → (π‘2) ≤ (π‘𝐴)) | |
7 | 5, 6 | mp3an1 1445 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 2 ≤ 𝐴) → (π‘2) ≤ (π‘𝐴)) |
8 | 4, 7 | eqbrtrrid 5066 | . 2 ⊢ ((𝐴 ∈ ℝ ∧ 2 ≤ 𝐴) → 1 ≤ (π‘𝐴)) |
9 | elnnz1 11996 | . 2 ⊢ ((π‘𝐴) ∈ ℕ ↔ ((π‘𝐴) ∈ ℤ ∧ 1 ≤ (π‘𝐴))) | |
10 | 3, 8, 9 | sylanbrc 586 | 1 ⊢ ((𝐴 ∈ ℝ ∧ 2 ≤ 𝐴) → (π‘𝐴) ∈ ℕ) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 399 ∈ wcel 2111 class class class wbr 5030 ‘cfv 6324 ℝcr 10525 1c1 10527 ≤ cle 10665 ℕcn 11625 2c2 11680 ℕ0cn0 11885 ℤcz 11969 πcppi 25679 |
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 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-10 2142 ax-11 2158 ax-12 2175 ax-ext 2770 ax-sep 5167 ax-nul 5174 ax-pow 5231 ax-pr 5295 ax-un 7441 ax-cnex 10582 ax-resscn 10583 ax-1cn 10584 ax-icn 10585 ax-addcl 10586 ax-addrcl 10587 ax-mulcl 10588 ax-mulrcl 10589 ax-mulcom 10590 ax-addass 10591 ax-mulass 10592 ax-distr 10593 ax-i2m1 10594 ax-1ne0 10595 ax-1rid 10596 ax-rnegex 10597 ax-rrecex 10598 ax-cnre 10599 ax-pre-lttri 10600 ax-pre-lttrn 10601 ax-pre-ltadd 10602 ax-pre-mulgt0 10603 ax-pre-sup 10604 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-3or 1085 df-3an 1086 df-tru 1541 df-ex 1782 df-nf 1786 df-sb 2070 df-mo 2598 df-eu 2629 df-clab 2777 df-cleq 2791 df-clel 2870 df-nfc 2938 df-ne 2988 df-nel 3092 df-ral 3111 df-rex 3112 df-reu 3113 df-rmo 3114 df-rab 3115 df-v 3443 df-sbc 3721 df-csb 3829 df-dif 3884 df-un 3886 df-in 3888 df-ss 3898 df-pss 3900 df-nul 4244 df-if 4426 df-pw 4499 df-sn 4526 df-pr 4528 df-tp 4530 df-op 4532 df-uni 4801 df-int 4839 df-iun 4883 df-br 5031 df-opab 5093 df-mpt 5111 df-tr 5137 df-id 5425 df-eprel 5430 df-po 5438 df-so 5439 df-fr 5478 df-we 5480 df-xp 5525 df-rel 5526 df-cnv 5527 df-co 5528 df-dm 5529 df-rn 5530 df-res 5531 df-ima 5532 df-pred 6116 df-ord 6162 df-on 6163 df-lim 6164 df-suc 6165 df-iota 6283 df-fun 6326 df-fn 6327 df-f 6328 df-f1 6329 df-fo 6330 df-f1o 6331 df-fv 6332 df-riota 7093 df-ov 7138 df-oprab 7139 df-mpo 7140 df-om 7561 df-1st 7671 df-2nd 7672 df-wrecs 7930 df-recs 7991 df-rdg 8029 df-1o 8085 df-2o 8086 df-oadd 8089 df-er 8272 df-en 8493 df-dom 8494 df-sdom 8495 df-fin 8496 df-sup 8890 df-inf 8891 df-dju 9314 df-card 9352 df-pnf 10666 df-mnf 10667 df-xr 10668 df-ltxr 10669 df-le 10670 df-sub 10861 df-neg 10862 df-div 11287 df-nn 11626 df-2 11688 df-3 11689 df-n0 11886 df-xnn0 11956 df-z 11970 df-uz 12232 df-rp 12378 df-icc 12733 df-fz 12886 df-fl 13157 df-seq 13365 df-exp 13426 df-hash 13687 df-cj 14450 df-re 14451 df-im 14452 df-sqrt 14586 df-abs 14587 df-dvds 15600 df-prm 16006 df-ppi 25685 |
This theorem is referenced by: ppieq0 25761 chebbnd1lem3 26055 chebbnd1 26056 chtppilimlem1 26057 chtppilimlem2 26058 chtppilim 26059 chebbnd2 26061 chto1lb 26062 pnt 26198 |
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