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| Mirrors > Home > MPE Home > Th. List > 6t3e18 | Structured version Visualization version GIF version | ||
| Description: 6 times 3 equals 18. (Contributed by Mario Carneiro, 19-Apr-2015.) |
| Ref | Expression |
|---|---|
| 6t3e18 | ⊢ (6 · 3) = ;18 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 6nn0 12608 | . 2 ⊢ 6 ∈ ℕ0 | |
| 2 | 2nn0 12604 | . 2 ⊢ 2 ∈ ℕ0 | |
| 3 | df-3 12387 | . 2 ⊢ 3 = (2 + 1) | |
| 4 | 6t2e12 12904 | . 2 ⊢ (6 · 2) = ;12 | |
| 5 | 1nn0 12603 | . . 3 ⊢ 1 ∈ ℕ0 | |
| 6 | eqid 2761 | . . 3 ⊢ ;12 = ;12 | |
| 7 | 6cn 12415 | . . . 4 ⊢ 6 ∈ ℂ | |
| 8 | 2cn 12399 | . . . 4 ⊢ 2 ∈ ℂ | |
| 9 | 6p2e8 12482 | . . . 4 ⊢ (6 + 2) = 8 | |
| 10 | 7, 8, 9 | addcomli 11483 | . . 3 ⊢ (2 + 6) = 8 |
| 11 | 5, 2, 1, 6, 10 | decaddi 12860 | . 2 ⊢ (;12 + 6) = ;18 |
| 12 | 1, 2, 3, 4, 11 | 4t3lem 12897 | 1 ⊢ (6 · 3) = ;18 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 (class class class)co 7412 1c1 11182 · cmul 11186 2c2 12378 3c3 12379 6c6 12382 8c8 12384 ;cdc 12795 |
| 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 7740 ax-resscn 11238 ax-1cn 11239 ax-icn 11240 ax-addcl 11241 ax-addrcl 11242 ax-mulcl 11243 ax-mulrcl 11244 ax-mulcom 11245 ax-addass 11246 ax-mulass 11247 ax-distr 11248 ax-i2m1 11249 ax-1ne0 11250 ax-1rid 11251 ax-rnegex 11252 ax-rrecex 11253 ax-cnre 11254 ax-pre-lttri 11255 ax-pre-lttrn 11256 ax-pre-ltadd 11257 |
| 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-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 6297 df-ord 6358 df-on 6359 df-lim 6360 df-suc 6361 df-iota 6487 df-fun 6533 df-fn 6534 df-f 6535 df-f1 6536 df-fo 6537 df-f1o 6538 df-fv 6539 df-ov 7415 df-om 7867 df-2nd 7991 df-frecs 8283 df-wrecs 8314 df-recs 8363 df-rdg 8402 df-er 8701 df-en 8958 df-dom 8959 df-sdom 8960 df-pnf 11326 df-mnf 11327 df-ltxr 11329 df-nn 12317 df-2 12386 df-3 12387 df-4 12388 df-5 12389 df-6 12390 df-7 12391 df-8 12392 df-9 12393 df-n0 12588 df-dec 12796 |
| This theorem is used by: 6t4e24 12906 19prm 17276 83prm 17281 139prm 17282 1259lem2 17290 1259lem4 17292 ex-lcm 31041 fmtno5lem1 48582 fmtno5lem3 48584 fmtno4prmfac 48601 139prmALT 48625 |
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