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Mirrors > Home > MPE Home > Th. List > 2exp8 | Structured version Visualization version GIF version |
Description: Two to the eighth power is 256. (Contributed by Mario Carneiro, 20-Apr-2015.) |
Ref | Expression |
---|---|
2exp8 | ⊢ (2↑8) = ;;256 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 2nn0 11309 | . 2 ⊢ 2 ∈ ℕ0 | |
2 | 4nn0 11311 | . 2 ⊢ 4 ∈ ℕ0 | |
3 | 2 | nn0cni 11304 | . . 3 ⊢ 4 ∈ ℂ |
4 | 2cn 11091 | . . 3 ⊢ 2 ∈ ℂ | |
5 | 4t2e8 11181 | . . 3 ⊢ (4 · 2) = 8 | |
6 | 3, 4, 5 | mulcomli 10047 | . 2 ⊢ (2 · 4) = 8 |
7 | 2exp4 15794 | . 2 ⊢ (2↑4) = ;16 | |
8 | 1nn0 11308 | . . . 4 ⊢ 1 ∈ ℕ0 | |
9 | 6nn0 11313 | . . . 4 ⊢ 6 ∈ ℕ0 | |
10 | 8, 9 | deccl 11512 | . . 3 ⊢ ;16 ∈ ℕ0 |
11 | eqid 2622 | . . 3 ⊢ ;16 = ;16 | |
12 | 9nn0 11316 | . . 3 ⊢ 9 ∈ ℕ0 | |
13 | 10 | nn0cni 11304 | . . . . 5 ⊢ ;16 ∈ ℂ |
14 | 13 | mulid1i 10042 | . . . 4 ⊢ (;16 · 1) = ;16 |
15 | 1p1e2 11134 | . . . 4 ⊢ (1 + 1) = 2 | |
16 | 5nn0 11312 | . . . 4 ⊢ 5 ∈ ℕ0 | |
17 | 9cn 11108 | . . . . 5 ⊢ 9 ∈ ℂ | |
18 | 6cn 11102 | . . . . 5 ⊢ 6 ∈ ℂ | |
19 | 9p6e15 11624 | . . . . 5 ⊢ (9 + 6) = ;15 | |
20 | 17, 18, 19 | addcomli 10228 | . . . 4 ⊢ (6 + 9) = ;15 |
21 | 8, 9, 12, 14, 15, 16, 20 | decaddci 11580 | . . 3 ⊢ ((;16 · 1) + 9) = ;25 |
22 | 3nn0 11310 | . . . 4 ⊢ 3 ∈ ℕ0 | |
23 | 18 | mulid2i 10043 | . . . . . 6 ⊢ (1 · 6) = 6 |
24 | 23 | oveq1i 6660 | . . . . 5 ⊢ ((1 · 6) + 3) = (6 + 3) |
25 | 6p3e9 11170 | . . . . 5 ⊢ (6 + 3) = 9 | |
26 | 24, 25 | eqtri 2644 | . . . 4 ⊢ ((1 · 6) + 3) = 9 |
27 | 6t6e36 11646 | . . . 4 ⊢ (6 · 6) = ;36 | |
28 | 9, 8, 9, 11, 9, 22, 26, 27 | decmul1c 11587 | . . 3 ⊢ (;16 · 6) = ;96 |
29 | 10, 8, 9, 11, 9, 12, 21, 28 | decmul2c 11589 | . 2 ⊢ (;16 · ;16) = ;;256 |
30 | 1, 2, 6, 7, 29 | numexp2x 15783 | 1 ⊢ (2↑8) = ;;256 |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1483 (class class class)co 6650 1c1 9937 + caddc 9939 · cmul 9941 2c2 11070 3c3 11071 4c4 11072 5c5 11073 6c6 11074 8c8 11076 9c9 11077 ;cdc 11493 ↑cexp 12860 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-8 1992 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-sep 4781 ax-nul 4789 ax-pow 4843 ax-pr 4906 ax-un 6949 ax-cnex 9992 ax-resscn 9993 ax-1cn 9994 ax-icn 9995 ax-addcl 9996 ax-addrcl 9997 ax-mulcl 9998 ax-mulrcl 9999 ax-mulcom 10000 ax-addass 10001 ax-mulass 10002 ax-distr 10003 ax-i2m1 10004 ax-1ne0 10005 ax-1rid 10006 ax-rnegex 10007 ax-rrecex 10008 ax-cnre 10009 ax-pre-lttri 10010 ax-pre-lttrn 10011 ax-pre-ltadd 10012 ax-pre-mulgt0 10013 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3or 1038 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-eu 2474 df-mo 2475 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ne 2795 df-nel 2898 df-ral 2917 df-rex 2918 df-reu 2919 df-rab 2921 df-v 3202 df-sbc 3436 df-csb 3534 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-pss 3590 df-nul 3916 df-if 4087 df-pw 4160 df-sn 4178 df-pr 4180 df-tp 4182 df-op 4184 df-uni 4437 df-iun 4522 df-br 4654 df-opab 4713 df-mpt 4730 df-tr 4753 df-id 5024 df-eprel 5029 df-po 5035 df-so 5036 df-fr 5073 df-we 5075 df-xp 5120 df-rel 5121 df-cnv 5122 df-co 5123 df-dm 5124 df-rn 5125 df-res 5126 df-ima 5127 df-pred 5680 df-ord 5726 df-on 5727 df-lim 5728 df-suc 5729 df-iota 5851 df-fun 5890 df-fn 5891 df-f 5892 df-f1 5893 df-fo 5894 df-f1o 5895 df-fv 5896 df-riota 6611 df-ov 6653 df-oprab 6654 df-mpt2 6655 df-om 7066 df-2nd 7169 df-wrecs 7407 df-recs 7468 df-rdg 7506 df-er 7742 df-en 7956 df-dom 7957 df-sdom 7958 df-pnf 10076 df-mnf 10077 df-xr 10078 df-ltxr 10079 df-le 10080 df-sub 10268 df-neg 10269 df-nn 11021 df-2 11079 df-3 11080 df-4 11081 df-5 11082 df-6 11083 df-7 11084 df-8 11085 df-9 11086 df-n0 11293 df-z 11378 df-dec 11494 df-uz 11688 df-seq 12802 df-exp 12861 |
This theorem is referenced by: 2exp16 15797 2503lem1 15844 quart1lem 24582 quart1 24583 fmtno3 41463 fmtno4sqrt 41483 2exp11 41517 |
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