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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 12439 | . . 3 ⊢ 6 ∈ ℕ | |
| 2 | 1 | decnncl2 12850 | . 2 ⊢ ;60 ∈ ℕ |
| 3 | 7nn 12442 | . 2 ⊢ 7 ∈ ℕ | |
| 4 | 1nn 12353 | . 2 ⊢ 1 ∈ ℕ | |
| 5 | 4nn0 12632 | . . . 4 ⊢ 4 ∈ ℕ0 | |
| 6 | 2nn 12423 | . . . 4 ⊢ 2 ∈ ℕ | |
| 7 | 5, 6 | decnncl 12845 | . . 3 ⊢ ;42 ∈ ℕ |
| 8 | 7 | decnncl2 12850 | . 2 ⊢ ;;420 ∈ ℕ |
| 9 | 60gcd7e1 43192 | . 2 ⊢ (;60 gcd 7) = 1 | |
| 10 | 2nn0 12630 | . . . . . 6 ⊢ 2 ∈ ℕ0 | |
| 11 | 5, 10 | deccl 12836 | . . . . 5 ⊢ ;42 ∈ ℕ0 |
| 12 | 0nn0 12628 | . . . . 5 ⊢ 0 ∈ ℕ0 | |
| 13 | 11, 12 | deccl 12836 | . . . 4 ⊢ ;;420 ∈ ℕ0 |
| 14 | 13 | nn0cni 12625 | . . 3 ⊢ ;;420 ∈ ℂ |
| 15 | 14 | mullidi 11321 | . 2 ⊢ (1 · ;;420) = ;;420 |
| 16 | 7nn0 12635 | . . 3 ⊢ 7 ∈ ℕ0 | |
| 17 | 6nn0 12634 | . . 3 ⊢ 6 ∈ ℕ0 | |
| 18 | eqid 2760 | . . 3 ⊢ ;60 = ;60 | |
| 19 | 7cn 12444 | . . . . 5 ⊢ 7 ∈ ℂ | |
| 20 | 6cn 12441 | . . . . 5 ⊢ 6 ∈ ℂ | |
| 21 | 7t6e42 12939 | . . . . 5 ⊢ (7 · 6) = ;42 | |
| 22 | 19, 20, 21 | mulcomli 11325 | . . . 4 ⊢ (6 · 7) = ;42 |
| 23 | 2cn 12425 | . . . . 5 ⊢ 2 ∈ ℂ | |
| 24 | 23 | addridi 11504 | . . . 4 ⊢ (2 + 0) = 2 |
| 25 | 5, 10, 12, 22, 24 | decaddi 12886 | . . 3 ⊢ ((6 · 7) + 0) = ;42 |
| 26 | 0cn 11305 | . . . 4 ⊢ 0 ∈ ℂ | |
| 27 | 19 | mul01i 11507 | . . . . 5 ⊢ (7 · 0) = 0 |
| 28 | 12 | dec0h 12848 | . . . . . 6 ⊢ 0 = ;00 |
| 29 | 28 | eqcomi 2769 | . . . . 5 ⊢ ;00 = 0 |
| 30 | 27, 29 | eqtr4i 2786 | . . . 4 ⊢ (7 · 0) = ;00 |
| 31 | 19, 26, 30 | mulcomli 11325 | . . 3 ⊢ (0 · 7) = ;00 |
| 32 | 16, 17, 12, 18, 12, 12, 25, 31 | decmul1c 12891 | . 2 ⊢ (;60 · 7) = ;;420 |
| 33 | 2, 3, 4, 8, 9, 15, 32 | lcmeprodgcdi 43194 | 1 ⊢ (;60 lcm 7) = ;;420 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1569 (class class class)co 7424 0cc0 11207 1c1 11208 · cmul 11212 2c2 12404 4c4 12406 6c6 12408 7c7 12409 ;cdc 12821 lcm clcm 16772 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-sep 5248 ax-nul 5259 ax-pow 5327 ax-pr 5391 ax-un 7755 ax-cnex 11263 ax-resscn 11264 ax-1cn 11265 ax-icn 11266 ax-addcl 11267 ax-addrcl 11268 ax-mulcl 11269 ax-mulrcl 11270 ax-mulcom 11271 ax-addass 11272 ax-mulass 11273 ax-distr 11274 ax-i2m1 11275 ax-1ne0 11276 ax-1rid 11277 ax-rnegex 11278 ax-rrecex 11279 ax-cnre 11280 ax-pre-lttri 11281 ax-pre-lttrn 11282 ax-pre-ltadd 11283 ax-pre-mulgt0 11284 ax-pre-sup 11285 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 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 3739 df-csb 3848 df-ss 3897 df-pss 4013 df-dif 4046 df-in 4090 df-un 4150 df-nul 4278 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 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 6307 df-ord 6368 df-on 6369 df-lim 6370 df-suc 6371 df-iota 6497 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-riota 7381 df-ov 7427 df-oprab 7428 df-mpo 7429 df-om 7882 df-1st 8005 df-2nd 8006 df-frecs 8307 df-wrecs 8338 df-recs 8387 df-rdg 8426 df-1o 8484 df-2o 8485 df-er 8725 df-en 8982 df-dom 8983 df-sdom 8984 df-fin 8985 df-sup 9441 df-inf 9442 df-pnf 11352 df-mnf 11353 df-xr 11354 df-ltxr 11355 df-le 11356 df-sub 11550 df-neg 11551 df-div 11981 df-nn 12343 df-2 12412 df-3 12413 df-4 12414 df-5 12415 df-6 12416 df-7 12417 df-8 12418 df-9 12419 df-n0 12614 df-z 12701 df-dec 12822 df-uz 12973 df-rp 13128 df-fz 13647 df-fl 13939 df-mod 14017 df-seq 14152 df-exp 14212 df-cj 15275 df-re 15276 df-im 15277 df-sqrt 15411 df-abs 15412 df-dvds 16432 df-gcd 16674 df-lcm 16774 df-prm 16856 |
| This theorem is used by: lcm7un 43206 |
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