![]() |
Mathbox for metakunt |
< Previous
Next >
Nearby theorems |
|
Mirrors > Home > MPE Home > Th. List > Mathboxes > lcm6un | Structured version Visualization version GIF version |
Description: Least common multiple of natural numbers up to 6 equals 60. (Contributed by metakunt, 25-Apr-2024.) |
Ref | Expression |
---|---|
lcm6un | ⊢ (lcm‘(1...6)) = ;60 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 6nn 12200 | . . 3 ⊢ 6 ∈ ℕ | |
2 | 1 | a1i 11 | . . . 4 ⊢ (6 ∈ ℕ → 6 ∈ ℕ) |
3 | 2 | lcmfunnnd 40400 | . . 3 ⊢ (6 ∈ ℕ → (lcm‘(1...6)) = ((lcm‘(1...(6 − 1))) lcm 6)) |
4 | 1, 3 | ax-mp 5 | . 2 ⊢ (lcm‘(1...6)) = ((lcm‘(1...(6 − 1))) lcm 6) |
5 | 6m1e5 12242 | . . . . . 6 ⊢ (6 − 1) = 5 | |
6 | 5 | oveq2i 7362 | . . . . 5 ⊢ (1...(6 − 1)) = (1...5) |
7 | 6 | fveq2i 6842 | . . . 4 ⊢ (lcm‘(1...(6 − 1))) = (lcm‘(1...5)) |
8 | 7 | oveq1i 7361 | . . 3 ⊢ ((lcm‘(1...(6 − 1))) lcm 6) = ((lcm‘(1...5)) lcm 6) |
9 | lcm5un 40405 | . . . 4 ⊢ (lcm‘(1...5)) = ;60 | |
10 | 9 | oveq1i 7361 | . . 3 ⊢ ((lcm‘(1...5)) lcm 6) = (;60 lcm 6) |
11 | 8, 10 | eqtri 2765 | . 2 ⊢ ((lcm‘(1...(6 − 1))) lcm 6) = (;60 lcm 6) |
12 | 60lcm6e60 40397 | . 2 ⊢ (;60 lcm 6) = ;60 | |
13 | 4, 11, 12 | 3eqtri 2769 | 1 ⊢ (lcm‘(1...6)) = ;60 |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1541 ∈ wcel 2106 ‘cfv 6493 (class class class)co 7351 0cc0 11009 1c1 11010 − cmin 11343 ℕcn 12111 5c5 12169 6c6 12170 ;cdc 12576 ...cfz 13378 lcm clcm 16423 lcmclcmf 16424 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2708 ax-rep 5240 ax-sep 5254 ax-nul 5261 ax-pow 5318 ax-pr 5382 ax-un 7664 ax-inf2 9535 ax-cnex 11065 ax-resscn 11066 ax-1cn 11067 ax-icn 11068 ax-addcl 11069 ax-addrcl 11070 ax-mulcl 11071 ax-mulrcl 11072 ax-mulcom 11073 ax-addass 11074 ax-mulass 11075 ax-distr 11076 ax-i2m1 11077 ax-1ne0 11078 ax-1rid 11079 ax-rnegex 11080 ax-rrecex 11081 ax-cnre 11082 ax-pre-lttri 11083 ax-pre-lttrn 11084 ax-pre-ltadd 11085 ax-pre-mulgt0 11086 ax-pre-sup 11087 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2539 df-eu 2568 df-clab 2715 df-cleq 2729 df-clel 2815 df-nfc 2887 df-ne 2942 df-nel 3048 df-ral 3063 df-rex 3072 df-rmo 3351 df-reu 3352 df-rab 3406 df-v 3445 df-sbc 3738 df-csb 3854 df-dif 3911 df-un 3913 df-in 3915 df-ss 3925 df-pss 3927 df-nul 4281 df-if 4485 df-pw 4560 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4864 df-int 4906 df-iun 4954 df-br 5104 df-opab 5166 df-mpt 5187 df-tr 5221 df-id 5529 df-eprel 5535 df-po 5543 df-so 5544 df-fr 5586 df-se 5587 df-we 5588 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-pred 6251 df-ord 6318 df-on 6319 df-lim 6320 df-suc 6321 df-iota 6445 df-fun 6495 df-fn 6496 df-f 6497 df-f1 6498 df-fo 6499 df-f1o 6500 df-fv 6501 df-isom 6502 df-riota 7307 df-ov 7354 df-oprab 7355 df-mpo 7356 df-om 7795 df-1st 7913 df-2nd 7914 df-frecs 8204 df-wrecs 8235 df-recs 8309 df-rdg 8348 df-1o 8404 df-2o 8405 df-er 8606 df-en 8842 df-dom 8843 df-sdom 8844 df-fin 8845 df-sup 9336 df-inf 9337 df-oi 9404 df-card 9833 df-pnf 11149 df-mnf 11150 df-xr 11151 df-ltxr 11152 df-le 11153 df-sub 11345 df-neg 11346 df-div 11771 df-nn 12112 df-2 12174 df-3 12175 df-4 12176 df-5 12177 df-6 12178 df-7 12179 df-8 12180 df-9 12181 df-n0 12372 df-z 12458 df-dec 12577 df-uz 12722 df-rp 12870 df-fz 13379 df-fzo 13522 df-fl 13651 df-mod 13729 df-seq 13861 df-exp 13922 df-hash 14184 df-cj 14943 df-re 14944 df-im 14945 df-sqrt 15079 df-abs 15080 df-clim 15329 df-prod 15748 df-dvds 16096 df-gcd 16334 df-lcm 16425 df-lcmf 16426 df-prm 16507 |
This theorem is referenced by: lcm7un 40407 |
Copyright terms: Public domain | W3C validator |