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Mirrors > Home > MPE Home > Th. List > pcprecl | Structured version Visualization version GIF version |
Description: Closure of the prime power pre-function. (Contributed by Mario Carneiro, 23-Feb-2014.) |
Ref | Expression |
---|---|
pclem.1 | ⊢ 𝐴 = {𝑛 ∈ ℕ0 ∣ (𝑃↑𝑛) ∥ 𝑁} |
pclem.2 | ⊢ 𝑆 = sup(𝐴, ℝ, < ) |
Ref | Expression |
---|---|
pcprecl | ⊢ ((𝑃 ∈ (ℤ≥‘2) ∧ (𝑁 ∈ ℤ ∧ 𝑁 ≠ 0)) → (𝑆 ∈ ℕ0 ∧ (𝑃↑𝑆) ∥ 𝑁)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | pclem.2 | . . 3 ⊢ 𝑆 = sup(𝐴, ℝ, < ) | |
2 | pclem.1 | . . . . 5 ⊢ 𝐴 = {𝑛 ∈ ℕ0 ∣ (𝑃↑𝑛) ∥ 𝑁} | |
3 | 2 | pclem 16424 | . . . 4 ⊢ ((𝑃 ∈ (ℤ≥‘2) ∧ (𝑁 ∈ ℤ ∧ 𝑁 ≠ 0)) → (𝐴 ⊆ ℤ ∧ 𝐴 ≠ ∅ ∧ ∃𝑦 ∈ ℤ ∀𝑧 ∈ 𝐴 𝑧 ≤ 𝑦)) |
4 | suprzcl2 12564 | . . . 4 ⊢ ((𝐴 ⊆ ℤ ∧ 𝐴 ≠ ∅ ∧ ∃𝑦 ∈ ℤ ∀𝑧 ∈ 𝐴 𝑧 ≤ 𝑦) → sup(𝐴, ℝ, < ) ∈ 𝐴) | |
5 | 3, 4 | syl 17 | . . 3 ⊢ ((𝑃 ∈ (ℤ≥‘2) ∧ (𝑁 ∈ ℤ ∧ 𝑁 ≠ 0)) → sup(𝐴, ℝ, < ) ∈ 𝐴) |
6 | 1, 5 | eqeltrid 2844 | . 2 ⊢ ((𝑃 ∈ (ℤ≥‘2) ∧ (𝑁 ∈ ℤ ∧ 𝑁 ≠ 0)) → 𝑆 ∈ 𝐴) |
7 | oveq2 7243 | . . . 4 ⊢ (𝑥 = 𝑆 → (𝑃↑𝑥) = (𝑃↑𝑆)) | |
8 | 7 | breq1d 5080 | . . 3 ⊢ (𝑥 = 𝑆 → ((𝑃↑𝑥) ∥ 𝑁 ↔ (𝑃↑𝑆) ∥ 𝑁)) |
9 | oveq2 7243 | . . . . . 6 ⊢ (𝑛 = 𝑥 → (𝑃↑𝑛) = (𝑃↑𝑥)) | |
10 | 9 | breq1d 5080 | . . . . 5 ⊢ (𝑛 = 𝑥 → ((𝑃↑𝑛) ∥ 𝑁 ↔ (𝑃↑𝑥) ∥ 𝑁)) |
11 | 10 | cbvrabv 3417 | . . . 4 ⊢ {𝑛 ∈ ℕ0 ∣ (𝑃↑𝑛) ∥ 𝑁} = {𝑥 ∈ ℕ0 ∣ (𝑃↑𝑥) ∥ 𝑁} |
12 | 2, 11 | eqtri 2767 | . . 3 ⊢ 𝐴 = {𝑥 ∈ ℕ0 ∣ (𝑃↑𝑥) ∥ 𝑁} |
13 | 8, 12 | elrab2 3620 | . 2 ⊢ (𝑆 ∈ 𝐴 ↔ (𝑆 ∈ ℕ0 ∧ (𝑃↑𝑆) ∥ 𝑁)) |
14 | 6, 13 | sylib 221 | 1 ⊢ ((𝑃 ∈ (ℤ≥‘2) ∧ (𝑁 ∈ ℤ ∧ 𝑁 ≠ 0)) → (𝑆 ∈ ℕ0 ∧ (𝑃↑𝑆) ∥ 𝑁)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 399 ∧ w3a 1089 = wceq 1543 ∈ wcel 2112 ≠ wne 2943 ∀wral 3064 ∃wrex 3065 {crab 3068 ⊆ wss 3883 ∅c0 4254 class class class wbr 5070 ‘cfv 6401 (class class class)co 7235 supcsup 9086 ℝcr 10758 0cc0 10759 < clt 10897 ≤ cle 10898 2c2 11915 ℕ0cn0 12120 ℤcz 12206 ℤ≥cuz 12468 ↑cexp 13667 ∥ cdvds 15848 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1976 ax-7 2016 ax-8 2114 ax-9 2122 ax-10 2143 ax-11 2160 ax-12 2177 ax-ext 2710 ax-sep 5209 ax-nul 5216 ax-pow 5275 ax-pr 5339 ax-un 7545 ax-cnex 10815 ax-resscn 10816 ax-1cn 10817 ax-icn 10818 ax-addcl 10819 ax-addrcl 10820 ax-mulcl 10821 ax-mulrcl 10822 ax-mulcom 10823 ax-addass 10824 ax-mulass 10825 ax-distr 10826 ax-i2m1 10827 ax-1ne0 10828 ax-1rid 10829 ax-rnegex 10830 ax-rrecex 10831 ax-cnre 10832 ax-pre-lttri 10833 ax-pre-lttrn 10834 ax-pre-ltadd 10835 ax-pre-mulgt0 10836 ax-pre-sup 10837 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 848 df-3or 1090 df-3an 1091 df-tru 1546 df-fal 1556 df-ex 1788 df-nf 1792 df-sb 2073 df-mo 2541 df-eu 2570 df-clab 2717 df-cleq 2731 df-clel 2818 df-nfc 2889 df-ne 2944 df-nel 3050 df-ral 3069 df-rex 3070 df-reu 3071 df-rmo 3072 df-rab 3073 df-v 3425 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3902 df-nul 4255 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-tp 4563 df-op 4565 df-uni 4837 df-iun 4923 df-br 5071 df-opab 5133 df-mpt 5153 df-tr 5179 df-id 5472 df-eprel 5478 df-po 5486 df-so 5487 df-fr 5527 df-we 5529 df-xp 5575 df-rel 5576 df-cnv 5577 df-co 5578 df-dm 5579 df-rn 5580 df-res 5581 df-ima 5582 df-pred 6179 df-ord 6237 df-on 6238 df-lim 6239 df-suc 6240 df-iota 6359 df-fun 6403 df-fn 6404 df-f 6405 df-f1 6406 df-fo 6407 df-f1o 6408 df-fv 6409 df-riota 7192 df-ov 7238 df-oprab 7239 df-mpo 7240 df-om 7667 df-2nd 7784 df-wrecs 8071 df-recs 8132 df-rdg 8170 df-er 8415 df-en 8651 df-dom 8652 df-sdom 8653 df-sup 9088 df-inf 9089 df-pnf 10899 df-mnf 10900 df-xr 10901 df-ltxr 10902 df-le 10903 df-sub 11094 df-neg 11095 df-div 11520 df-nn 11861 df-2 11923 df-3 11924 df-n0 12121 df-z 12207 df-uz 12469 df-rp 12617 df-fl 13397 df-seq 13607 df-exp 13668 df-cj 14695 df-re 14696 df-im 14697 df-sqrt 14831 df-abs 14832 df-dvds 15849 |
This theorem is referenced by: pcprendvds 16426 pcprendvds2 16427 pcpre1 16428 pcpremul 16429 pceulem 16431 pczpre 16433 pczcl 16434 pczdvds 16449 |
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