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| Mirrors > Home > MPE Home > Th. List > Mathboxes > 60lcm7e420 | Structured version Visualization version GIF version | ||
| Description: The lcm of 60 and 7 is 420. (Contributed by metakunt, 25-Apr-2024.) |
| Ref | Expression |
|---|---|
| 60lcm7e420 | ⊢ (;60 lcm 7) = ;;420 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 6nn 12432 | . . 3 ⊢ 6 ∈ ℕ | |
| 2 | 1 | decnncl2 12843 | . 2 ⊢ ;60 ∈ ℕ |
| 3 | 7nn 12435 | . 2 ⊢ 7 ∈ ℕ | |
| 4 | 1nn 12346 | . 2 ⊢ 1 ∈ ℕ | |
| 5 | 4nn0 12625 | . . . 4 ⊢ 4 ∈ ℕ0 | |
| 6 | 2nn 12416 | . . . 4 ⊢ 2 ∈ ℕ | |
| 7 | 5, 6 | decnncl 12838 | . . 3 ⊢ ;42 ∈ ℕ |
| 8 | 7 | decnncl2 12843 | . 2 ⊢ ;;420 ∈ ℕ |
| 9 | 60gcd7e1 43055 | . 2 ⊢ (;60 gcd 7) = 1 | |
| 10 | 2nn0 12623 | . . . . . 6 ⊢ 2 ∈ ℕ0 | |
| 11 | 5, 10 | deccl 12829 | . . . . 5 ⊢ ;42 ∈ ℕ0 |
| 12 | 0nn0 12621 | . . . . 5 ⊢ 0 ∈ ℕ0 | |
| 13 | 11, 12 | deccl 12829 | . . . 4 ⊢ ;;420 ∈ ℕ0 |
| 14 | 13 | nn0cni 12618 | . . 3 ⊢ ;;420 ∈ ℂ |
| 15 | 14 | mullidi 11314 | . 2 ⊢ (1 · ;;420) = ;;420 |
| 16 | 7nn0 12628 | . . 3 ⊢ 7 ∈ ℕ0 | |
| 17 | 6nn0 12627 | . . 3 ⊢ 6 ∈ ℕ0 | |
| 18 | eqid 2761 | . . 3 ⊢ ;60 = ;60 | |
| 19 | 7cn 12437 | . . . . 5 ⊢ 7 ∈ ℂ | |
| 20 | 6cn 12434 | . . . . 5 ⊢ 6 ∈ ℂ | |
| 21 | 7t6e42 12932 | . . . . 5 ⊢ (7 · 6) = ;42 | |
| 22 | 19, 20, 21 | mulcomli 11318 | . . . 4 ⊢ (6 · 7) = ;42 |
| 23 | 2cn 12418 | . . . . 5 ⊢ 2 ∈ ℂ | |
| 24 | 23 | addridi 11497 | . . . 4 ⊢ (2 + 0) = 2 |
| 25 | 5, 10, 12, 22, 24 | decaddi 12879 | . . 3 ⊢ ((6 · 7) + 0) = ;42 |
| 26 | 0cn 11298 | . . . 4 ⊢ 0 ∈ ℂ | |
| 27 | 19 | mul01i 11500 | . . . . 5 ⊢ (7 · 0) = 0 |
| 28 | 12 | dec0h 12841 | . . . . . 6 ⊢ 0 = ;00 |
| 29 | 28 | eqcomi 2770 | . . . . 5 ⊢ ;00 = 0 |
| 30 | 27, 29 | eqtr4i 2787 | . . . 4 ⊢ (7 · 0) = ;00 |
| 31 | 19, 26, 30 | mulcomli 11318 | . . 3 ⊢ (0 · 7) = ;00 |
| 32 | 16, 17, 12, 18, 12, 12, 25, 31 | decmul1c 12884 | . 2 ⊢ (;60 · 7) = ;;420 |
| 33 | 2, 3, 4, 8, 9, 15, 32 | lcmeprodgcdi 43057 | 1 ⊢ (;60 lcm 7) = ;;420 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 (class class class)co 7420 0cc0 11200 1c1 11201 · cmul 11205 2c2 12397 4c4 12399 6c6 12401 7c7 12402 ;cdc 12814 lcm clcm 16763 |
| 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 2733 ax-sep 5249 ax-nul 5260 ax-pow 5327 ax-pr 5391 ax-un 7751 ax-cnex 11256 ax-resscn 11257 ax-1cn 11258 ax-icn 11259 ax-addcl 11260 ax-addrcl 11261 ax-mulcl 11262 ax-mulrcl 11263 ax-mulcom 11264 ax-addass 11265 ax-mulass 11266 ax-distr 11267 ax-i2m1 11268 ax-1ne0 11269 ax-1rid 11270 ax-rnegex 11271 ax-rrecex 11272 ax-cnre 11273 ax-pre-lttri 11274 ax-pre-lttrn 11275 ax-pre-ltadd 11276 ax-pre-mulgt0 11277 ax-pre-sup 11278 |
| 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 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3063 df-ral 3078 df-rex 3088 df-rmo 3366 df-reu 3367 df-rab 3414 df-v 3453 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 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-we 5606 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-pred 6304 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-riota 7377 df-ov 7423 df-oprab 7424 df-mpo 7425 df-om 7878 df-1st 8001 df-2nd 8002 df-frecs 8299 df-wrecs 8330 df-recs 8379 df-rdg 8418 df-1o 8476 df-2o 8477 df-er 8717 df-en 8974 df-dom 8975 df-sdom 8976 df-fin 8977 df-sup 9434 df-inf 9435 df-pnf 11345 df-mnf 11346 df-xr 11347 df-ltxr 11348 df-le 11349 df-sub 11543 df-neg 11544 df-div 11974 df-nn 12336 df-2 12405 df-3 12406 df-4 12407 df-5 12408 df-6 12409 df-7 12410 df-8 12411 df-9 12412 df-n0 12607 df-z 12694 df-dec 12815 df-uz 12966 df-rp 13121 df-fz 13640 df-fl 13932 df-mod 14010 df-seq 14145 df-exp 14205 df-cj 15266 df-re 15267 df-im 15268 df-sqrt 15402 df-abs 15403 df-dvds 16423 df-gcd 16665 df-lcm 16765 df-prm 16847 |
| This theorem is used by: lcm7un 43069 |
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