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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 12405 | . 2 ⊢ 9 ∈ ℕ0 | |
| 2 | 2nn0 12398 | . 2 ⊢ 2 ∈ ℕ0 | |
| 3 | df-3 12189 | . 2 ⊢ 3 = (2 + 1) | |
| 4 | 9t2e18 12710 | . 2 ⊢ (9 · 2) = ;18 | |
| 5 | 1nn0 12397 | . . 3 ⊢ 1 ∈ ℕ0 | |
| 6 | 8nn0 12404 | . . 3 ⊢ 8 ∈ ℕ0 | |
| 7 | eqid 2731 | . . 3 ⊢ ;18 = ;18 | |
| 8 | 1p1e2 12245 | . . 3 ⊢ (1 + 1) = 2 | |
| 9 | 7nn0 12403 | . . 3 ⊢ 7 ∈ ℕ0 | |
| 10 | 1 | nn0cni 12393 | . . . 4 ⊢ 9 ∈ ℂ |
| 11 | 6 | nn0cni 12393 | . . . 4 ⊢ 8 ∈ ℂ |
| 12 | 9p8e17 12681 | . . . 4 ⊢ (9 + 8) = ;17 | |
| 13 | 10, 11, 12 | addcomli 11305 | . . 3 ⊢ (8 + 9) = ;17 |
| 14 | 5, 6, 1, 7, 8, 9, 13 | decaddci 12649 | . 2 ⊢ (;18 + 9) = ;27 |
| 15 | 1, 2, 3, 4, 14 | 4t3lem 12685 | 1 ⊢ (9 · 3) = ;27 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1541 (class class class)co 7346 1c1 11007 · cmul 11011 2c2 12180 3c3 12181 7c7 12185 8c8 12186 9c9 12187 ;cdc 12588 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2113 ax-9 2121 ax-10 2144 ax-11 2160 ax-12 2180 ax-ext 2703 ax-sep 5232 ax-nul 5242 ax-pow 5301 ax-pr 5368 ax-un 7668 ax-resscn 11063 ax-1cn 11064 ax-icn 11065 ax-addcl 11066 ax-addrcl 11067 ax-mulcl 11068 ax-mulrcl 11069 ax-mulcom 11070 ax-addass 11071 ax-mulass 11072 ax-distr 11073 ax-i2m1 11074 ax-1ne0 11075 ax-1rid 11076 ax-rnegex 11077 ax-rrecex 11078 ax-cnre 11079 ax-pre-lttri 11080 ax-pre-lttrn 11081 ax-pre-ltadd 11082 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2535 df-eu 2564 df-clab 2710 df-cleq 2723 df-clel 2806 df-nfc 2881 df-ne 2929 df-nel 3033 df-ral 3048 df-rex 3057 df-reu 3347 df-rab 3396 df-v 3438 df-sbc 3737 df-csb 3846 df-dif 3900 df-un 3902 df-in 3904 df-ss 3914 df-pss 3917 df-nul 4281 df-if 4473 df-pw 4549 df-sn 4574 df-pr 4576 df-op 4580 df-uni 4857 df-iun 4941 df-br 5090 df-opab 5152 df-mpt 5171 df-tr 5197 df-id 5509 df-eprel 5514 df-po 5522 df-so 5523 df-fr 5567 df-we 5569 df-xp 5620 df-rel 5621 df-cnv 5622 df-co 5623 df-dm 5624 df-rn 5625 df-res 5626 df-ima 5627 df-pred 6248 df-ord 6309 df-on 6310 df-lim 6311 df-suc 6312 df-iota 6437 df-fun 6483 df-fn 6484 df-f 6485 df-f1 6486 df-fo 6487 df-f1o 6488 df-fv 6489 df-riota 7303 df-ov 7349 df-oprab 7350 df-mpo 7351 df-om 7797 df-2nd 7922 df-frecs 8211 df-wrecs 8242 df-recs 8291 df-rdg 8329 df-er 8622 df-en 8870 df-dom 8871 df-sdom 8872 df-pnf 11148 df-mnf 11149 df-ltxr 11151 df-sub 11346 df-nn 12126 df-2 12188 df-3 12189 df-4 12190 df-5 12191 df-6 12192 df-7 12193 df-8 12194 df-9 12195 df-n0 12382 df-dec 12589 |
| This theorem is referenced by: 9t4e36 12712 3exp3 17003 prmlem2 17031 631prm 17038 1259lem4 17045 2503lem2 17049 4001lem3 17054 mcubic 26784 log2ublem3 26885 log2ub 26886 3exp7 42094 3lexlogpow2ineq2 42100 257prm 47600 fmtno4nprmfac193 47613 127prm 47638 m11nprm 47640 |
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