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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 12347 | . . 3 ⊢ 6 ∈ ℕ | |
| 2 | 1 | decnncl2 12758 | . 2 ⊢ ;60 ∈ ℕ |
| 3 | 7nn 12350 | . 2 ⊢ 7 ∈ ℕ | |
| 4 | 1nn 12261 | . 2 ⊢ 1 ∈ ℕ | |
| 5 | 4nn0 12540 | . . . 4 ⊢ 4 ∈ ℕ0 | |
| 6 | 2nn 12331 | . . . 4 ⊢ 2 ∈ ℕ | |
| 7 | 5, 6 | decnncl 12753 | . . 3 ⊢ ;42 ∈ ℕ |
| 8 | 7 | decnncl2 12758 | . 2 ⊢ ;;420 ∈ ℕ |
| 9 | 60gcd7e1 42832 | . 2 ⊢ (;60 gcd 7) = 1 | |
| 10 | 2nn0 12538 | . . . . . 6 ⊢ 2 ∈ ℕ0 | |
| 11 | 5, 10 | deccl 12744 | . . . . 5 ⊢ ;42 ∈ ℕ0 |
| 12 | 0nn0 12536 | . . . . 5 ⊢ 0 ∈ ℕ0 | |
| 13 | 11, 12 | deccl 12744 | . . . 4 ⊢ ;;420 ∈ ℕ0 |
| 14 | 13 | nn0cni 12533 | . . 3 ⊢ ;;420 ∈ ℂ |
| 15 | 14 | mullidi 11231 | . 2 ⊢ (1 · ;;420) = ;;420 |
| 16 | 7nn0 12543 | . . 3 ⊢ 7 ∈ ℕ0 | |
| 17 | 6nn0 12542 | . . 3 ⊢ 6 ∈ ℕ0 | |
| 18 | eqid 2765 | . . 3 ⊢ ;60 = ;60 | |
| 19 | 7cn 12352 | . . . . 5 ⊢ 7 ∈ ℂ | |
| 20 | 6cn 12349 | . . . . 5 ⊢ 6 ∈ ℂ | |
| 21 | 7t6e42 12847 | . . . . 5 ⊢ (7 · 6) = ;42 | |
| 22 | 19, 20, 21 | mulcomli 11235 | . . . 4 ⊢ (6 · 7) = ;42 |
| 23 | 2cn 12333 | . . . . 5 ⊢ 2 ∈ ℂ | |
| 24 | 23 | addridi 11414 | . . . 4 ⊢ (2 + 0) = 2 |
| 25 | 5, 10, 12, 22, 24 | decaddi 12794 | . . 3 ⊢ ((6 · 7) + 0) = ;42 |
| 26 | 0cn 11215 | . . . 4 ⊢ 0 ∈ ℂ | |
| 27 | 19 | mul01i 11417 | . . . . 5 ⊢ (7 · 0) = 0 |
| 28 | 12 | dec0h 12756 | . . . . . 6 ⊢ 0 = ;00 |
| 29 | 28 | eqcomi 2774 | . . . . 5 ⊢ ;00 = 0 |
| 30 | 27, 29 | eqtr4i 2791 | . . . 4 ⊢ (7 · 0) = ;00 |
| 31 | 19, 26, 30 | mulcomli 11235 | . . 3 ⊢ (0 · 7) = ;00 |
| 32 | 16, 17, 12, 18, 12, 12, 25, 31 | decmul1c 12799 | . 2 ⊢ (;60 · 7) = ;;420 |
| 33 | 2, 3, 4, 8, 9, 15, 32 | lcmeprodgcdi 42834 | 1 ⊢ (;60 lcm 7) = ;;420 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 (class class class)co 7419 0cc0 11117 1c1 11118 · cmul 11122 2c2 12312 4c4 12314 6c6 12316 7c7 12317 ;cdc 12729 lcm clcm 16670 |
| 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-sep 5259 ax-nul 5271 ax-pow 5338 ax-pr 5406 ax-un 7742 ax-cnex 11173 ax-resscn 11174 ax-1cn 11175 ax-icn 11176 ax-addcl 11177 ax-addrcl 11178 ax-mulcl 11179 ax-mulrcl 11180 ax-mulcom 11181 ax-addass 11182 ax-mulass 11183 ax-distr 11184 ax-i2m1 11185 ax-1ne0 11186 ax-1rid 11187 ax-rnegex 11188 ax-rrecex 11189 ax-cnre 11190 ax-pre-lttri 11191 ax-pre-lttrn 11192 ax-pre-ltadd 11193 ax-pre-mulgt0 11194 ax-pre-sup 11195 |
| 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-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-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-riota 7376 df-ov 7422 df-oprab 7423 df-mpo 7424 df-om 7869 df-1st 7992 df-2nd 7993 df-frecs 8284 df-wrecs 8315 df-recs 8364 df-rdg 8403 df-1o 8459 df-2o 8460 df-er 8700 df-en 8950 df-dom 8951 df-sdom 8952 df-fin 8953 df-sup 9409 df-inf 9410 df-pnf 11262 df-mnf 11263 df-xr 11264 df-ltxr 11265 df-le 11266 df-sub 11460 df-neg 11461 df-div 11889 df-nn 12251 df-2 12320 df-3 12321 df-4 12322 df-5 12323 df-6 12324 df-7 12325 df-8 12326 df-9 12327 df-n0 12522 df-z 12609 df-dec 12730 df-uz 12881 df-rp 13035 df-fz 13554 df-fl 13845 df-mod 13923 df-seq 14058 df-exp 14118 df-cj 15176 df-re 15177 df-im 15178 df-sqrt 15312 df-abs 15313 df-dvds 16335 df-gcd 16577 df-lcm 16672 df-prm 16754 |
| This theorem is used by: lcm7un 42846 |
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