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Mirrors > Home > ILE Home > Th. List > pcxnn0cl | GIF version |
Description: Extended nonnegative integer closure of the general prime count function. (Contributed by Jim Kingdon, 13-Oct-2024.) |
Ref | Expression |
---|---|
pcxnn0cl | ⊢ ((𝑃 ∈ ℙ ∧ 𝑁 ∈ ℤ) → (𝑃 pCnt 𝑁) ∈ ℕ0*) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | pc0 12236 | . . . . 5 ⊢ (𝑃 ∈ ℙ → (𝑃 pCnt 0) = +∞) | |
2 | pnf0xnn0 9184 | . . . . 5 ⊢ +∞ ∈ ℕ0* | |
3 | 1, 2 | eqeltrdi 2257 | . . . 4 ⊢ (𝑃 ∈ ℙ → (𝑃 pCnt 0) ∈ ℕ0*) |
4 | 3 | adantr 274 | . . 3 ⊢ ((𝑃 ∈ ℙ ∧ 𝑁 ∈ ℤ) → (𝑃 pCnt 0) ∈ ℕ0*) |
5 | oveq2 5850 | . . . 4 ⊢ (𝑁 = 0 → (𝑃 pCnt 𝑁) = (𝑃 pCnt 0)) | |
6 | 5 | eleq1d 2235 | . . 3 ⊢ (𝑁 = 0 → ((𝑃 pCnt 𝑁) ∈ ℕ0* ↔ (𝑃 pCnt 0) ∈ ℕ0*)) |
7 | 4, 6 | syl5ibrcom 156 | . 2 ⊢ ((𝑃 ∈ ℙ ∧ 𝑁 ∈ ℤ) → (𝑁 = 0 → (𝑃 pCnt 𝑁) ∈ ℕ0*)) |
8 | pczcl 12230 | . . . 4 ⊢ ((𝑃 ∈ ℙ ∧ (𝑁 ∈ ℤ ∧ 𝑁 ≠ 0)) → (𝑃 pCnt 𝑁) ∈ ℕ0) | |
9 | 8 | nn0xnn0d 9186 | . . 3 ⊢ ((𝑃 ∈ ℙ ∧ (𝑁 ∈ ℤ ∧ 𝑁 ≠ 0)) → (𝑃 pCnt 𝑁) ∈ ℕ0*) |
10 | 9 | expr 373 | . 2 ⊢ ((𝑃 ∈ ℙ ∧ 𝑁 ∈ ℤ) → (𝑁 ≠ 0 → (𝑃 pCnt 𝑁) ∈ ℕ0*)) |
11 | simpr 109 | . . . 4 ⊢ ((𝑃 ∈ ℙ ∧ 𝑁 ∈ ℤ) → 𝑁 ∈ ℤ) | |
12 | 0z 9202 | . . . 4 ⊢ 0 ∈ ℤ | |
13 | zdceq 9266 | . . . 4 ⊢ ((𝑁 ∈ ℤ ∧ 0 ∈ ℤ) → DECID 𝑁 = 0) | |
14 | 11, 12, 13 | sylancl 410 | . . 3 ⊢ ((𝑃 ∈ ℙ ∧ 𝑁 ∈ ℤ) → DECID 𝑁 = 0) |
15 | dcne 2347 | . . 3 ⊢ (DECID 𝑁 = 0 ↔ (𝑁 = 0 ∨ 𝑁 ≠ 0)) | |
16 | 14, 15 | sylib 121 | . 2 ⊢ ((𝑃 ∈ ℙ ∧ 𝑁 ∈ ℤ) → (𝑁 = 0 ∨ 𝑁 ≠ 0)) |
17 | 7, 10, 16 | mpjaod 708 | 1 ⊢ ((𝑃 ∈ ℙ ∧ 𝑁 ∈ ℤ) → (𝑃 pCnt 𝑁) ∈ ℕ0*) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ wa 103 ∨ wo 698 DECID wdc 824 = wceq 1343 ∈ wcel 2136 ≠ wne 2336 (class class class)co 5842 0cc0 7753 +∞cpnf 7930 ℕ0*cxnn0 9177 ℤcz 9191 ℙcprime 12039 pCnt cpc 12216 |
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 604 ax-in2 605 ax-io 699 ax-5 1435 ax-7 1436 ax-gen 1437 ax-ie1 1481 ax-ie2 1482 ax-8 1492 ax-10 1493 ax-11 1494 ax-i12 1495 ax-bndl 1497 ax-4 1498 ax-17 1514 ax-i9 1518 ax-ial 1522 ax-i5r 1523 ax-13 2138 ax-14 2139 ax-ext 2147 ax-coll 4097 ax-sep 4100 ax-nul 4108 ax-pow 4153 ax-pr 4187 ax-un 4411 ax-setind 4514 ax-iinf 4565 ax-cnex 7844 ax-resscn 7845 ax-1cn 7846 ax-1re 7847 ax-icn 7848 ax-addcl 7849 ax-addrcl 7850 ax-mulcl 7851 ax-mulrcl 7852 ax-addcom 7853 ax-mulcom 7854 ax-addass 7855 ax-mulass 7856 ax-distr 7857 ax-i2m1 7858 ax-0lt1 7859 ax-1rid 7860 ax-0id 7861 ax-rnegex 7862 ax-precex 7863 ax-cnre 7864 ax-pre-ltirr 7865 ax-pre-ltwlin 7866 ax-pre-lttrn 7867 ax-pre-apti 7868 ax-pre-ltadd 7869 ax-pre-mulgt0 7870 ax-pre-mulext 7871 ax-arch 7872 ax-caucvg 7873 |
This theorem depends on definitions: df-bi 116 df-dc 825 df-3or 969 df-3an 970 df-tru 1346 df-fal 1349 df-nf 1449 df-sb 1751 df-eu 2017 df-mo 2018 df-clab 2152 df-cleq 2158 df-clel 2161 df-nfc 2297 df-ne 2337 df-nel 2432 df-ral 2449 df-rex 2450 df-reu 2451 df-rmo 2452 df-rab 2453 df-v 2728 df-sbc 2952 df-csb 3046 df-dif 3118 df-un 3120 df-in 3122 df-ss 3129 df-nul 3410 df-if 3521 df-pw 3561 df-sn 3582 df-pr 3583 df-op 3585 df-uni 3790 df-int 3825 df-iun 3868 df-br 3983 df-opab 4044 df-mpt 4045 df-tr 4081 df-id 4271 df-po 4274 df-iso 4275 df-iord 4344 df-on 4346 df-ilim 4347 df-suc 4349 df-iom 4568 df-xp 4610 df-rel 4611 df-cnv 4612 df-co 4613 df-dm 4614 df-rn 4615 df-res 4616 df-ima 4617 df-iota 5153 df-fun 5190 df-fn 5191 df-f 5192 df-f1 5193 df-fo 5194 df-f1o 5195 df-fv 5196 df-isom 5197 df-riota 5798 df-ov 5845 df-oprab 5846 df-mpo 5847 df-1st 6108 df-2nd 6109 df-recs 6273 df-frec 6359 df-1o 6384 df-2o 6385 df-er 6501 df-en 6707 df-sup 6949 df-inf 6950 df-pnf 7935 df-mnf 7936 df-xr 7937 df-ltxr 7938 df-le 7939 df-sub 8071 df-neg 8072 df-reap 8473 df-ap 8480 df-div 8569 df-inn 8858 df-2 8916 df-3 8917 df-4 8918 df-n0 9115 df-xnn0 9178 df-z 9192 df-uz 9467 df-q 9558 df-rp 9590 df-fz 9945 df-fzo 10078 df-fl 10205 df-mod 10258 df-seqfrec 10381 df-exp 10455 df-cj 10784 df-re 10785 df-im 10786 df-rsqrt 10940 df-abs 10941 df-dvds 11728 df-gcd 11876 df-prm 12040 df-pc 12217 |
This theorem is referenced by: pcgcd 12260 |
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