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| Mirrors > Home > MPE Home > Th. List > prmolelcmf | Structured version Visualization version GIF version | ||
| Description: The primorial of a positive integer is less than or equal to the least common multiple of all positive integers less than or equal to the integer. (Contributed by AV, 19-Aug-2020.) (Revised by AV, 29-Aug-2020.) |
| Ref | Expression |
|---|---|
| prmolelcmf | ⊢ (𝑁 ∈ ℕ0 → (#p‘𝑁) ≤ (lcm‘(1...𝑁))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | prmocl 17111 | . . . 4 ⊢ (𝑁 ∈ ℕ0 → (#p‘𝑁) ∈ ℕ) | |
| 2 | 1 | nnzd 12628 | . . 3 ⊢ (𝑁 ∈ ℕ0 → (#p‘𝑁) ∈ ℤ) |
| 3 | fzssz 13565 | . . . 4 ⊢ (1...𝑁) ⊆ ℤ | |
| 4 | fzfid 14022 | . . . 4 ⊢ (𝑁 ∈ ℕ0 → (1...𝑁) ∈ Fin) | |
| 5 | 0nelfz1 13582 | . . . . 5 ⊢ 0 ∉ (1...𝑁) | |
| 6 | 5 | a1i 11 | . . . 4 ⊢ (𝑁 ∈ ℕ0 → 0 ∉ (1...𝑁)) |
| 7 | lcmfn0cl 16701 | . . . 4 ⊢ (((1...𝑁) ⊆ ℤ ∧ (1...𝑁) ∈ Fin ∧ 0 ∉ (1...𝑁)) → (lcm‘(1...𝑁)) ∈ ℕ) | |
| 8 | 3, 4, 6, 7 | mp3an2i 1495 | . . 3 ⊢ (𝑁 ∈ ℕ0 → (lcm‘(1...𝑁)) ∈ ℕ) |
| 9 | 2, 8 | jca 521 | . 2 ⊢ (𝑁 ∈ ℕ0 → ((#p‘𝑁) ∈ ℤ ∧ (lcm‘(1...𝑁)) ∈ ℕ)) |
| 10 | prmodvdslcmf 17124 | . 2 ⊢ (𝑁 ∈ ℕ0 → (#p‘𝑁) ∥ (lcm‘(1...𝑁))) | |
| 11 | dvdsle 16385 | . 2 ⊢ (((#p‘𝑁) ∈ ℤ ∧ (lcm‘(1...𝑁)) ∈ ℕ) → ((#p‘𝑁) ∥ (lcm‘(1...𝑁)) → (#p‘𝑁) ≤ (lcm‘(1...𝑁)))) | |
| 12 | 9, 10, 11 | sylc 66 | 1 ⊢ (𝑁 ∈ ℕ0 → (#p‘𝑁) ≤ (lcm‘(1...𝑁))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 ∈ wcel 2146 ∉ wnel 3066 ⊆ wss 3906 class class class wbr 5111 ‘cfv 6540 (class class class)co 7416 Fincfn 8945 0cc0 11111 1c1 11112 ≤ cle 11255 ℕcn 12244 ℕ0cn0 12515 ℤcz 12602 ...cfz 13546 ∥ cdvds 16327 lcmclcmf 16664 #pcprmo 17108 |
| 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 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2737 ax-rep 5240 ax-sep 5259 ax-nul 5271 ax-pow 5338 ax-pr 5406 ax-un 7738 ax-inf2 9613 ax-cnex 11167 ax-resscn 11168 ax-1cn 11169 ax-icn 11170 ax-addcl 11171 ax-addrcl 11172 ax-mulcl 11173 ax-mulrcl 11174 ax-mulcom 11175 ax-addass 11176 ax-mulass 11177 ax-distr 11178 ax-i2m1 11179 ax-1ne0 11180 ax-1rid 11181 ax-rnegex 11182 ax-rrecex 11183 ax-cnre 11184 ax-pre-lttri 11185 ax-pre-lttrn 11186 ax-pre-ltadd 11187 ax-pre-mulgt0 11188 ax-pre-sup 11189 |
| 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 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-nel 3067 df-ral 3082 df-rex 3092 df-rmo 3371 df-reu 3372 df-rab 3419 df-v 3459 df-sbc 3747 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-pss 3926 df-nul 4287 df-if 4490 df-pw 4566 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4875 df-int 4915 df-iun 4960 df-br 5112 df-opab 5176 df-mpt 5195 df-tr 5221 df-id 5558 df-eprel 5563 df-po 5571 df-so 5572 df-fr 5616 df-se 5617 df-we 5618 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-pred 6306 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6496 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-isom 6549 df-riota 7373 df-ov 7419 df-oprab 7420 df-mpo 7421 df-om 7865 df-1st 7988 df-2nd 7989 df-frecs 8280 df-wrecs 8311 df-recs 8360 df-rdg 8399 df-1o 8455 df-2o 8456 df-er 8696 df-en 8946 df-dom 8947 df-sdom 8948 df-fin 8949 df-sup 9405 df-inf 9406 df-oi 9475 df-card 9937 df-pnf 11256 df-mnf 11257 df-xr 11258 df-ltxr 11259 df-le 11260 df-sub 11454 df-neg 11455 df-div 11883 df-nn 12245 df-2 12314 df-3 12315 df-n0 12516 df-z 12603 df-uz 12874 df-rp 13028 df-fz 13547 df-fzo 13695 df-fl 13838 df-mod 13916 df-seq 14051 df-exp 14111 df-hash 14380 df-cj 15169 df-re 15170 df-im 15171 df-sqrt 15305 df-abs 15306 df-clim 15558 df-prod 15976 df-dvds 16328 df-gcd 16570 df-lcmf 16666 df-prm 16747 df-prmo 17109 |
| This theorem is used by: (None) |
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