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| Mirrors > Home > MPE Home > Th. List > 9t3e27 | Structured version Visualization version GIF version | ||
| Description: 9 times 3 equals 27. (Contributed by Mario Carneiro, 19-Apr-2015.) |
| Ref | Expression |
|---|---|
| 9t3e27 | ⊢ (9 · 3) = ;27 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 9nn0 12461 | . 2 ⊢ 9 ∈ ℕ0 | |
| 2 | 2nn0 12454 | . 2 ⊢ 2 ∈ ℕ0 | |
| 3 | df-3 12245 | . 2 ⊢ 3 = (2 + 1) | |
| 4 | 9t2e18 12766 | . 2 ⊢ (9 · 2) = ;18 | |
| 5 | 1nn0 12453 | . . 3 ⊢ 1 ∈ ℕ0 | |
| 6 | 8nn0 12460 | . . 3 ⊢ 8 ∈ ℕ0 | |
| 7 | eqid 2736 | . . 3 ⊢ ;18 = ;18 | |
| 8 | 1p1e2 12301 | . . 3 ⊢ (1 + 1) = 2 | |
| 9 | 7nn0 12459 | . . 3 ⊢ 7 ∈ ℕ0 | |
| 10 | 1 | nn0cni 12449 | . . . 4 ⊢ 9 ∈ ℂ |
| 11 | 6 | nn0cni 12449 | . . . 4 ⊢ 8 ∈ ℂ |
| 12 | 9p8e17 12737 | . . . 4 ⊢ (9 + 8) = ;17 | |
| 13 | 10, 11, 12 | addcomli 11338 | . . 3 ⊢ (8 + 9) = ;17 |
| 14 | 5, 6, 1, 7, 8, 9, 13 | decaddci 12705 | . 2 ⊢ (;18 + 9) = ;27 |
| 15 | 1, 2, 3, 4, 14 | 4t3lem 12741 | 1 ⊢ (9 · 3) = ;27 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1542 (class class class)co 7367 1c1 11039 · cmul 11043 2c2 12236 3c3 12237 7c7 12241 8c8 12242 9c9 12243 ;cdc 12644 |
| 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 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2708 ax-sep 5231 ax-nul 5241 ax-pow 5307 ax-pr 5375 ax-un 7689 ax-resscn 11095 ax-1cn 11096 ax-icn 11097 ax-addcl 11098 ax-addrcl 11099 ax-mulcl 11100 ax-mulrcl 11101 ax-mulcom 11102 ax-addass 11103 ax-mulass 11104 ax-distr 11105 ax-i2m1 11106 ax-1ne0 11107 ax-1rid 11108 ax-rnegex 11109 ax-rrecex 11110 ax-cnre 11111 ax-pre-lttri 11112 ax-pre-lttrn 11113 ax-pre-ltadd 11114 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-nel 3037 df-ral 3052 df-rex 3062 df-reu 3343 df-rab 3390 df-v 3431 df-sbc 3729 df-csb 3838 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-pss 3909 df-nul 4274 df-if 4467 df-pw 4543 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4851 df-iun 4935 df-br 5086 df-opab 5148 df-mpt 5167 df-tr 5193 df-id 5526 df-eprel 5531 df-po 5539 df-so 5540 df-fr 5584 df-we 5586 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 6265 df-ord 6326 df-on 6327 df-lim 6328 df-suc 6329 df-iota 6454 df-fun 6500 df-fn 6501 df-f 6502 df-f1 6503 df-fo 6504 df-f1o 6505 df-fv 6506 df-riota 7324 df-ov 7370 df-oprab 7371 df-mpo 7372 df-om 7818 df-2nd 7943 df-frecs 8231 df-wrecs 8262 df-recs 8311 df-rdg 8349 df-er 8643 df-en 8894 df-dom 8895 df-sdom 8896 df-pnf 11181 df-mnf 11182 df-ltxr 11184 df-sub 11379 df-nn 12175 df-2 12244 df-3 12245 df-4 12246 df-5 12247 df-6 12248 df-7 12249 df-8 12250 df-9 12251 df-n0 12438 df-dec 12645 |
| This theorem is referenced by: 9t4e36 12768 3exp3 17062 prmlem2 17090 631prm 17097 1259lem4 17104 2503lem2 17108 4001lem3 17113 mcubic 26811 log2ublem3 26912 log2ub 26913 3exp7 42492 3lexlogpow2ineq2 42498 257prm 48024 fmtno4nprmfac193 48037 127prm 48062 m11nprm 48064 |
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