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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 12519 | . 2 ⊢ 2 ∈ ℕ0 | |
2 | 4nn0 12521 | . 2 ⊢ 4 ∈ ℕ0 | |
3 | 2 | nn0cni 12514 | . . 3 ⊢ 4 ∈ ℂ |
4 | 2cn 12317 | . . 3 ⊢ 2 ∈ ℂ | |
5 | 4t2e8 12410 | . . 3 ⊢ (4 · 2) = 8 | |
6 | 3, 4, 5 | mulcomli 11253 | . 2 ⊢ (2 · 4) = 8 |
7 | 2exp4 17053 | . 2 ⊢ (2↑4) = ;16 | |
8 | 1nn0 12518 | . . . 4 ⊢ 1 ∈ ℕ0 | |
9 | 6nn0 12523 | . . . 4 ⊢ 6 ∈ ℕ0 | |
10 | 8, 9 | deccl 12722 | . . 3 ⊢ ;16 ∈ ℕ0 |
11 | eqid 2728 | . . 3 ⊢ ;16 = ;16 | |
12 | 9nn0 12526 | . . 3 ⊢ 9 ∈ ℕ0 | |
13 | 10 | nn0cni 12514 | . . . . 5 ⊢ ;16 ∈ ℂ |
14 | 13 | mulridi 11248 | . . . 4 ⊢ (;16 · 1) = ;16 |
15 | 1p1e2 12367 | . . . 4 ⊢ (1 + 1) = 2 | |
16 | 5nn0 12522 | . . . 4 ⊢ 5 ∈ ℕ0 | |
17 | 9cn 12342 | . . . . 5 ⊢ 9 ∈ ℂ | |
18 | 6cn 12333 | . . . . 5 ⊢ 6 ∈ ℂ | |
19 | 9p6e15 12798 | . . . . 5 ⊢ (9 + 6) = ;15 | |
20 | 17, 18, 19 | addcomli 11436 | . . . 4 ⊢ (6 + 9) = ;15 |
21 | 8, 9, 12, 14, 15, 16, 20 | decaddci 12768 | . . 3 ⊢ ((;16 · 1) + 9) = ;25 |
22 | 3nn0 12520 | . . . 4 ⊢ 3 ∈ ℕ0 | |
23 | 18 | mullidi 11249 | . . . . . 6 ⊢ (1 · 6) = 6 |
24 | 23 | oveq1i 7430 | . . . . 5 ⊢ ((1 · 6) + 3) = (6 + 3) |
25 | 6p3e9 12402 | . . . . 5 ⊢ (6 + 3) = 9 | |
26 | 24, 25 | eqtri 2756 | . . . 4 ⊢ ((1 · 6) + 3) = 9 |
27 | 6t6e36 12815 | . . . 4 ⊢ (6 · 6) = ;36 | |
28 | 9, 8, 9, 11, 9, 22, 26, 27 | decmul1c 12772 | . . 3 ⊢ (;16 · 6) = ;96 |
29 | 10, 8, 9, 11, 9, 12, 21, 28 | decmul2c 12773 | . 2 ⊢ (;16 · ;16) = ;;256 |
30 | 1, 2, 6, 7, 29 | numexp2x 17047 | 1 ⊢ (2↑8) = ;;256 |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1534 (class class class)co 7420 1c1 11139 + caddc 11141 · cmul 11143 2c2 12297 3c3 12298 4c4 12299 5c5 12300 6c6 12301 8c8 12303 9c9 12304 ;cdc 12707 ↑cexp 14058 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1790 ax-4 1804 ax-5 1906 ax-6 1964 ax-7 2004 ax-8 2101 ax-9 2109 ax-10 2130 ax-11 2147 ax-12 2167 ax-ext 2699 ax-sep 5299 ax-nul 5306 ax-pow 5365 ax-pr 5429 ax-un 7740 ax-cnex 11194 ax-resscn 11195 ax-1cn 11196 ax-icn 11197 ax-addcl 11198 ax-addrcl 11199 ax-mulcl 11200 ax-mulrcl 11201 ax-mulcom 11202 ax-addass 11203 ax-mulass 11204 ax-distr 11205 ax-i2m1 11206 ax-1ne0 11207 ax-1rid 11208 ax-rnegex 11209 ax-rrecex 11210 ax-cnre 11211 ax-pre-lttri 11212 ax-pre-lttrn 11213 ax-pre-ltadd 11214 ax-pre-mulgt0 11215 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 847 df-3or 1086 df-3an 1087 df-tru 1537 df-fal 1547 df-ex 1775 df-nf 1779 df-sb 2061 df-mo 2530 df-eu 2559 df-clab 2706 df-cleq 2720 df-clel 2806 df-nfc 2881 df-ne 2938 df-nel 3044 df-ral 3059 df-rex 3068 df-reu 3374 df-rab 3430 df-v 3473 df-sbc 3777 df-csb 3893 df-dif 3950 df-un 3952 df-in 3954 df-ss 3964 df-pss 3966 df-nul 4324 df-if 4530 df-pw 4605 df-sn 4630 df-pr 4632 df-op 4636 df-uni 4909 df-iun 4998 df-br 5149 df-opab 5211 df-mpt 5232 df-tr 5266 df-id 5576 df-eprel 5582 df-po 5590 df-so 5591 df-fr 5633 df-we 5635 df-xp 5684 df-rel 5685 df-cnv 5686 df-co 5687 df-dm 5688 df-rn 5689 df-res 5690 df-ima 5691 df-pred 6305 df-ord 6372 df-on 6373 df-lim 6374 df-suc 6375 df-iota 6500 df-fun 6550 df-fn 6551 df-f 6552 df-f1 6553 df-fo 6554 df-f1o 6555 df-fv 6556 df-riota 7376 df-ov 7423 df-oprab 7424 df-mpo 7425 df-om 7871 df-2nd 7994 df-frecs 8286 df-wrecs 8317 df-recs 8391 df-rdg 8430 df-er 8724 df-en 8964 df-dom 8965 df-sdom 8966 df-pnf 11280 df-mnf 11281 df-xr 11282 df-ltxr 11283 df-le 11284 df-sub 11476 df-neg 11477 df-nn 12243 df-2 12305 df-3 12306 df-4 12307 df-5 12308 df-6 12309 df-7 12310 df-8 12311 df-9 12312 df-n0 12503 df-z 12589 df-dec 12708 df-uz 12853 df-seq 13999 df-exp 14059 |
This theorem is referenced by: 2exp11 17058 2exp16 17059 2503lem1 17105 quart1lem 26786 quart1 26787 lcmineqlem 41523 aks4d1p1 41547 fmtno3 46891 fmtno4sqrt 46911 |
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