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Mirrors > Home > ILE Home > Th. List > pcprecl | 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 | . . . . . . 7 ⊢ 𝐴 = {𝑛 ∈ ℕ0 ∣ (𝑃↑𝑛) ∥ 𝑁} | |
3 | 2 | ssrab3 3233 | . . . . . 6 ⊢ 𝐴 ⊆ ℕ0 |
4 | nn0ssz 9223 | . . . . . 6 ⊢ ℕ0 ⊆ ℤ | |
5 | 3, 4 | sstri 3156 | . . . . 5 ⊢ 𝐴 ⊆ ℤ |
6 | 5 | a1i 9 | . . . 4 ⊢ ((𝑃 ∈ (ℤ≥‘2) ∧ (𝑁 ∈ ℤ ∧ 𝑁 ≠ 0)) → 𝐴 ⊆ ℤ) |
7 | 2 | pclemdc 12235 | . . . 4 ⊢ ((𝑃 ∈ (ℤ≥‘2) ∧ (𝑁 ∈ ℤ ∧ 𝑁 ≠ 0)) → ∀𝑥 ∈ ℤ DECID 𝑥 ∈ 𝐴) |
8 | 2 | pclemub 12234 | . . . 4 ⊢ ((𝑃 ∈ (ℤ≥‘2) ∧ (𝑁 ∈ ℤ ∧ 𝑁 ≠ 0)) → ∃𝑥 ∈ ℤ ∀𝑦 ∈ 𝐴 𝑦 ≤ 𝑥) |
9 | 2 | pclem0 12233 | . . . . 5 ⊢ ((𝑃 ∈ (ℤ≥‘2) ∧ (𝑁 ∈ ℤ ∧ 𝑁 ≠ 0)) → 0 ∈ 𝐴) |
10 | elex2 2746 | . . . . 5 ⊢ (0 ∈ 𝐴 → ∃𝑥 𝑥 ∈ 𝐴) | |
11 | 9, 10 | syl 14 | . . . 4 ⊢ ((𝑃 ∈ (ℤ≥‘2) ∧ (𝑁 ∈ ℤ ∧ 𝑁 ≠ 0)) → ∃𝑥 𝑥 ∈ 𝐴) |
12 | 6, 7, 8, 11 | suprzcl2dc 11903 | . . 3 ⊢ ((𝑃 ∈ (ℤ≥‘2) ∧ (𝑁 ∈ ℤ ∧ 𝑁 ≠ 0)) → sup(𝐴, ℝ, < ) ∈ 𝐴) |
13 | 1, 12 | eqeltrid 2257 | . 2 ⊢ ((𝑃 ∈ (ℤ≥‘2) ∧ (𝑁 ∈ ℤ ∧ 𝑁 ≠ 0)) → 𝑆 ∈ 𝐴) |
14 | oveq2 5859 | . . . 4 ⊢ (𝑧 = 𝑆 → (𝑃↑𝑧) = (𝑃↑𝑆)) | |
15 | 14 | breq1d 3997 | . . 3 ⊢ (𝑧 = 𝑆 → ((𝑃↑𝑧) ∥ 𝑁 ↔ (𝑃↑𝑆) ∥ 𝑁)) |
16 | oveq2 5859 | . . . . . 6 ⊢ (𝑛 = 𝑧 → (𝑃↑𝑛) = (𝑃↑𝑧)) | |
17 | 16 | breq1d 3997 | . . . . 5 ⊢ (𝑛 = 𝑧 → ((𝑃↑𝑛) ∥ 𝑁 ↔ (𝑃↑𝑧) ∥ 𝑁)) |
18 | 17 | cbvrabv 2729 | . . . 4 ⊢ {𝑛 ∈ ℕ0 ∣ (𝑃↑𝑛) ∥ 𝑁} = {𝑧 ∈ ℕ0 ∣ (𝑃↑𝑧) ∥ 𝑁} |
19 | 2, 18 | eqtri 2191 | . . 3 ⊢ 𝐴 = {𝑧 ∈ ℕ0 ∣ (𝑃↑𝑧) ∥ 𝑁} |
20 | 15, 19 | elrab2 2889 | . 2 ⊢ (𝑆 ∈ 𝐴 ↔ (𝑆 ∈ ℕ0 ∧ (𝑃↑𝑆) ∥ 𝑁)) |
21 | 13, 20 | sylib 121 | 1 ⊢ ((𝑃 ∈ (ℤ≥‘2) ∧ (𝑁 ∈ ℤ ∧ 𝑁 ≠ 0)) → (𝑆 ∈ ℕ0 ∧ (𝑃↑𝑆) ∥ 𝑁)) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ wa 103 = wceq 1348 ∃wex 1485 ∈ wcel 2141 ≠ wne 2340 {crab 2452 ⊆ wss 3121 class class class wbr 3987 ‘cfv 5196 (class class class)co 5851 supcsup 6957 ℝcr 7766 0cc0 7767 < clt 7947 2c2 8922 ℕ0cn0 9128 ℤcz 9205 ℤ≥cuz 9480 ↑cexp 10468 ∥ cdvds 11742 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 609 ax-in2 610 ax-io 704 ax-5 1440 ax-7 1441 ax-gen 1442 ax-ie1 1486 ax-ie2 1487 ax-8 1497 ax-10 1498 ax-11 1499 ax-i12 1500 ax-bndl 1502 ax-4 1503 ax-17 1519 ax-i9 1523 ax-ial 1527 ax-i5r 1528 ax-13 2143 ax-14 2144 ax-ext 2152 ax-coll 4102 ax-sep 4105 ax-nul 4113 ax-pow 4158 ax-pr 4192 ax-un 4416 ax-setind 4519 ax-iinf 4570 ax-cnex 7858 ax-resscn 7859 ax-1cn 7860 ax-1re 7861 ax-icn 7862 ax-addcl 7863 ax-addrcl 7864 ax-mulcl 7865 ax-mulrcl 7866 ax-addcom 7867 ax-mulcom 7868 ax-addass 7869 ax-mulass 7870 ax-distr 7871 ax-i2m1 7872 ax-0lt1 7873 ax-1rid 7874 ax-0id 7875 ax-rnegex 7876 ax-precex 7877 ax-cnre 7878 ax-pre-ltirr 7879 ax-pre-ltwlin 7880 ax-pre-lttrn 7881 ax-pre-apti 7882 ax-pre-ltadd 7883 ax-pre-mulgt0 7884 ax-pre-mulext 7885 ax-arch 7886 ax-caucvg 7887 |
This theorem depends on definitions: df-bi 116 df-dc 830 df-3or 974 df-3an 975 df-tru 1351 df-fal 1354 df-nf 1454 df-sb 1756 df-eu 2022 df-mo 2023 df-clab 2157 df-cleq 2163 df-clel 2166 df-nfc 2301 df-ne 2341 df-nel 2436 df-ral 2453 df-rex 2454 df-reu 2455 df-rmo 2456 df-rab 2457 df-v 2732 df-sbc 2956 df-csb 3050 df-dif 3123 df-un 3125 df-in 3127 df-ss 3134 df-nul 3415 df-if 3526 df-pw 3566 df-sn 3587 df-pr 3588 df-op 3590 df-uni 3795 df-int 3830 df-iun 3873 df-br 3988 df-opab 4049 df-mpt 4050 df-tr 4086 df-id 4276 df-po 4279 df-iso 4280 df-iord 4349 df-on 4351 df-ilim 4352 df-suc 4354 df-iom 4573 df-xp 4615 df-rel 4616 df-cnv 4617 df-co 4618 df-dm 4619 df-rn 4620 df-res 4621 df-ima 4622 df-iota 5158 df-fun 5198 df-fn 5199 df-f 5200 df-f1 5201 df-fo 5202 df-f1o 5203 df-fv 5204 df-isom 5205 df-riota 5807 df-ov 5854 df-oprab 5855 df-mpo 5856 df-1st 6117 df-2nd 6118 df-recs 6282 df-frec 6368 df-sup 6959 df-inf 6960 df-pnf 7949 df-mnf 7950 df-xr 7951 df-ltxr 7952 df-le 7953 df-sub 8085 df-neg 8086 df-reap 8487 df-ap 8494 df-div 8583 df-inn 8872 df-2 8930 df-3 8931 df-4 8932 df-n0 9129 df-z 9206 df-uz 9481 df-q 9572 df-rp 9604 df-fz 9959 df-fzo 10092 df-fl 10219 df-mod 10272 df-seqfrec 10395 df-exp 10469 df-cj 10799 df-re 10800 df-im 10801 df-rsqrt 10955 df-abs 10956 df-dvds 11743 |
This theorem is referenced by: pcprendvds 12237 pcprendvds2 12238 pcpre1 12239 pcpremul 12240 pceulem 12241 pceu 12242 pczpre 12244 pczcl 12245 pczdvds 12260 |
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