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Mirrors > Home > MPE Home > Th. List > sq2 | Structured version Visualization version GIF version |
Description: The square of 2 is 4. (Contributed by NM, 22-Aug-1999.) |
Ref | Expression |
---|---|
sq2 | ⊢ (2↑2) = 4 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 2cn 11091 | . . 3 ⊢ 2 ∈ ℂ | |
2 | 1 | sqvali 12943 | . 2 ⊢ (2↑2) = (2 · 2) |
3 | 2t2e4 11177 | . 2 ⊢ (2 · 2) = 4 | |
4 | 2, 3 | eqtri 2644 | 1 ⊢ (2↑2) = 4 |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1483 (class class class)co 6650 · cmul 9941 2c2 11070 4c4 11072 ↑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-n0 11293 df-z 11378 df-uz 11688 df-seq 12802 df-exp 12861 |
This theorem is referenced by: sq4e2t8 12962 cu2 12963 sqoddm1div8 13028 faclbnd2 13078 sqrt4 14013 amgm2 14109 ef01bndlem 14914 cos2bnd 14918 pythagtriplem1 15521 4sqlem12 15660 2exp4 15794 lt6abl 18296 csbren 23182 minveclem2 23197 sincos6thpi 24267 heron 24565 quad2 24566 dcubic2 24571 mcubic 24574 dquartlem2 24579 dquart 24580 quart1 24583 quartlem1 24584 chtublem 24936 chtub 24937 bclbnd 25005 bposlem6 25014 bposlem8 25016 chebbnd1lem3 25160 chebbnd1 25161 ipidsq 27565 minvecolem2 27731 normpar2i 28013 sqsscirc1 29954 wallispi2lem1 40288 stirlinglem3 40293 stirlinglem10 40300 fmtno1 41453 fmtno2 41462 fmtnofac1 41482 m2prm 41505 2exp5 41507 lighneallem2 41523 lighneallem4a 41525 exple2lt6 42145 |
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