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| Mirrors > Home > MPE Home > Th. List > infpnlem2 | Structured version Visualization version GIF version | ||
| Description: Lemma for infpn 17004. For any positive integer 𝑁, there exists a prime number 𝑗 greater than 𝑁. (Contributed by NM, 5-May-2005.) |
| Ref | Expression |
|---|---|
| infpnlem.1 | ⊢ 𝐾 = ((!‘𝑁) + 1) |
| Ref | Expression |
|---|---|
| infpnlem2 | ⊢ (𝑁 ∈ ℕ → ∃𝑗 ∈ ℕ (𝑁 < 𝑗 ∧ ∀𝑘 ∈ ℕ ((𝑗 / 𝑘) ∈ ℕ → (𝑘 = 1 ∨ 𝑘 = 𝑗)))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | infpnlem.1 | . . . . 5 ⊢ 𝐾 = ((!‘𝑁) + 1) | |
| 2 | nnnn0 12535 | . . . . . . 7 ⊢ (𝑁 ∈ ℕ → 𝑁 ∈ ℕ0) | |
| 3 | 2 | faccld 14348 | . . . . . 6 ⊢ (𝑁 ∈ ℕ → (!‘𝑁) ∈ ℕ) |
| 4 | 3 | peano2nnd 12274 | . . . . 5 ⊢ (𝑁 ∈ ℕ → ((!‘𝑁) + 1) ∈ ℕ) |
| 5 | 1, 4 | eqeltrid 2864 | . . . 4 ⊢ (𝑁 ∈ ℕ → 𝐾 ∈ ℕ) |
| 6 | 3 | nnge1d 12308 | . . . . . 6 ⊢ (𝑁 ∈ ℕ → 1 ≤ (!‘𝑁)) |
| 7 | 1nn 12268 | . . . . . . 7 ⊢ 1 ∈ ℕ | |
| 8 | nnleltp1 12676 | . . . . . . 7 ⊢ ((1 ∈ ℕ ∧ (!‘𝑁) ∈ ℕ) → (1 ≤ (!‘𝑁) ↔ 1 < ((!‘𝑁) + 1))) | |
| 9 | 7, 3, 8 | sylancr 599 | . . . . . 6 ⊢ (𝑁 ∈ ℕ → (1 ≤ (!‘𝑁) ↔ 1 < ((!‘𝑁) + 1))) |
| 10 | 6, 9 | mpbid 235 | . . . . 5 ⊢ (𝑁 ∈ ℕ → 1 < ((!‘𝑁) + 1)) |
| 11 | 10, 1 | breqtrrdi 5147 | . . . 4 ⊢ (𝑁 ∈ ℕ → 1 < 𝐾) |
| 12 | nncn 12265 | . . . . . . 7 ⊢ (𝐾 ∈ ℕ → 𝐾 ∈ ℂ) | |
| 13 | nnne0 12294 | . . . . . . 7 ⊢ (𝐾 ∈ ℕ → 𝐾 ≠ 0) | |
| 14 | 12, 13 | jca 521 | . . . . . 6 ⊢ (𝐾 ∈ ℕ → (𝐾 ∈ ℂ ∧ 𝐾 ≠ 0)) |
| 15 | divid 11926 | . . . . . 6 ⊢ ((𝐾 ∈ ℂ ∧ 𝐾 ≠ 0) → (𝐾 / 𝐾) = 1) | |
| 16 | 5, 14, 15 | 3syl 19 | . . . . 5 ⊢ (𝑁 ∈ ℕ → (𝐾 / 𝐾) = 1) |
| 17 | 16, 7 | eqeltrdi 2868 | . . . 4 ⊢ (𝑁 ∈ ℕ → (𝐾 / 𝐾) ∈ ℕ) |
| 18 | breq2 5107 | . . . . . 6 ⊢ (𝑗 = 𝐾 → (1 < 𝑗 ↔ 1 < 𝐾)) | |
| 19 | oveq2 7421 | . . . . . . 7 ⊢ (𝑗 = 𝐾 → (𝐾 / 𝑗) = (𝐾 / 𝐾)) | |
| 20 | 19 | eleq1d 2845 | . . . . . 6 ⊢ (𝑗 = 𝐾 → ((𝐾 / 𝑗) ∈ ℕ ↔ (𝐾 / 𝐾) ∈ ℕ)) |
| 21 | 18, 20 | anbi12d 644 | . . . . 5 ⊢ (𝑗 = 𝐾 → ((1 < 𝑗 ∧ (𝐾 / 𝑗) ∈ ℕ) ↔ (1 < 𝐾 ∧ (𝐾 / 𝐾) ∈ ℕ))) |
| 22 | 21 | rspcev 3576 | . . . 4 ⊢ ((𝐾 ∈ ℕ ∧ (1 < 𝐾 ∧ (𝐾 / 𝐾) ∈ ℕ)) → ∃𝑗 ∈ ℕ (1 < 𝑗 ∧ (𝐾 / 𝑗) ∈ ℕ)) |
| 23 | 5, 11, 17, 22 | syl12anc 850 | . . 3 ⊢ (𝑁 ∈ ℕ → ∃𝑗 ∈ ℕ (1 < 𝑗 ∧ (𝐾 / 𝑗) ∈ ℕ)) |
| 24 | breq2 5107 | . . . . 5 ⊢ (𝑗 = 𝑘 → (1 < 𝑗 ↔ 1 < 𝑘)) | |
| 25 | oveq2 7421 | . . . . . 6 ⊢ (𝑗 = 𝑘 → (𝐾 / 𝑗) = (𝐾 / 𝑘)) | |
| 26 | 25 | eleq1d 2845 | . . . . 5 ⊢ (𝑗 = 𝑘 → ((𝐾 / 𝑗) ∈ ℕ ↔ (𝐾 / 𝑘) ∈ ℕ)) |
| 27 | 24, 26 | anbi12d 644 | . . . 4 ⊢ (𝑗 = 𝑘 → ((1 < 𝑗 ∧ (𝐾 / 𝑗) ∈ ℕ) ↔ (1 < 𝑘 ∧ (𝐾 / 𝑘) ∈ ℕ))) |
| 28 | 27 | nnwos 12964 | . . 3 ⊢ (∃𝑗 ∈ ℕ (1 < 𝑗 ∧ (𝐾 / 𝑗) ∈ ℕ) → ∃𝑗 ∈ ℕ ((1 < 𝑗 ∧ (𝐾 / 𝑗) ∈ ℕ) ∧ ∀𝑘 ∈ ℕ ((1 < 𝑘 ∧ (𝐾 / 𝑘) ∈ ℕ) → 𝑗 ≤ 𝑘))) |
| 29 | 23, 28 | syl 18 | . 2 ⊢ (𝑁 ∈ ℕ → ∃𝑗 ∈ ℕ ((1 < 𝑗 ∧ (𝐾 / 𝑗) ∈ ℕ) ∧ ∀𝑘 ∈ ℕ ((1 < 𝑘 ∧ (𝐾 / 𝑘) ∈ ℕ) → 𝑗 ≤ 𝑘))) |
| 30 | 1 | infpnlem1 17002 | . . 3 ⊢ ((𝑁 ∈ ℕ ∧ 𝑗 ∈ ℕ) → (((1 < 𝑗 ∧ (𝐾 / 𝑗) ∈ ℕ) ∧ ∀𝑘 ∈ ℕ ((1 < 𝑘 ∧ (𝐾 / 𝑘) ∈ ℕ) → 𝑗 ≤ 𝑘)) → (𝑁 < 𝑗 ∧ ∀𝑘 ∈ ℕ ((𝑗 / 𝑘) ∈ ℕ → (𝑘 = 1 ∨ 𝑘 = 𝑗))))) |
| 31 | 30 | reximdva 3175 | . 2 ⊢ (𝑁 ∈ ℕ → (∃𝑗 ∈ ℕ ((1 < 𝑗 ∧ (𝐾 / 𝑗) ∈ ℕ) ∧ ∀𝑘 ∈ ℕ ((1 < 𝑘 ∧ (𝐾 / 𝑘) ∈ ℕ) → 𝑗 ≤ 𝑘)) → ∃𝑗 ∈ ℕ (𝑁 < 𝑗 ∧ ∀𝑘 ∈ ℕ ((𝑗 / 𝑘) ∈ ℕ → (𝑘 = 1 ∨ 𝑘 = 𝑗))))) |
| 32 | 29, 31 | mpd 16 | 1 ⊢ (𝑁 ∈ ℕ → ∃𝑗 ∈ ℕ (𝑁 < 𝑗 ∧ ∀𝑘 ∈ ℕ ((𝑗 / 𝑘) ∈ ℕ → (𝑘 = 1 ∨ 𝑘 = 𝑗)))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∧ wa 401 ∨ wo 861 = wceq 1570 ∈ wcel 2145 ≠ wne 2955 ∀wral 3076 ∃wrex 3086 class class class wbr 5103 ‘cfv 6533 (class class class)co 7413 ℂcc 11122 0cc0 11124 1c1 11125 + caddc 11127 < clt 11267 ≤ cle 11268 / cdiv 11895 ℕcn 12257 !cfa 14337 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-sep 5251 ax-nul 5263 ax-pow 5330 ax-pr 5398 ax-un 7736 ax-cnex 11180 ax-resscn 11181 ax-1cn 11182 ax-icn 11183 ax-addcl 11184 ax-addrcl 11185 ax-mulcl 11186 ax-mulrcl 11187 ax-mulcom 11188 ax-addass 11189 ax-mulass 11190 ax-distr 11191 ax-i2m1 11192 ax-1ne0 11193 ax-1rid 11194 ax-rnegex 11195 ax-rrecex 11196 ax-cnre 11197 ax-pre-lttri 11198 ax-pre-lttrn 11199 ax-pre-ltadd 11200 ax-pre-mulgt0 11201 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5550 df-eprel 5555 df-po 5563 df-so 5564 df-fr 5608 df-we 5610 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-pred 6299 df-ord 6360 df-on 6361 df-lim 6362 df-suc 6363 df-iota 6489 df-fun 6535 df-fn 6536 df-f 6537 df-f1 6538 df-fo 6539 df-f1o 6540 df-fv 6541 df-riota 7370 df-ov 7416 df-oprab 7417 df-mpo 7418 df-om 7863 df-2nd 7987 df-frecs 8280 df-wrecs 8311 df-recs 8360 df-rdg 8399 df-er 8696 df-en 8953 df-dom 8954 df-sdom 8955 df-pnf 11269 df-mnf 11270 df-xr 11271 df-ltxr 11272 df-le 11273 df-sub 11467 df-neg 11468 df-div 11896 df-nn 12258 df-n0 12529 df-z 12616 df-uz 12888 df-seq 14066 df-fac 14338 |
| This theorem is used by: infpn 17004 |
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