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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 12256 | . . 3 ⊢ 2 ∈ ℂ | |
| 2 | 1 | sqvali 14142 | . 2 ⊢ (2↑2) = (2 · 2) |
| 3 | 2t2e4 12340 | . 2 ⊢ (2 · 2) = 4 | |
| 4 | 2, 3 | eqtri 2759 | 1 ⊢ (2↑2) = 4 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1542 (class class class)co 7367 · cmul 11043 2c2 12236 4c4 12238 ↑cexp 14023 |
| 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-cnex 11094 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 ax-pre-mulgt0 11115 |
| 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-xr 11183 df-ltxr 11184 df-le 11185 df-sub 11379 df-neg 11380 df-nn 12175 df-2 12244 df-3 12245 df-4 12246 df-n0 12438 df-z 12525 df-uz 12789 df-seq 13964 df-exp 14024 |
| This theorem is referenced by: sq4e2t8 14161 cu2 14162 sqoddm1div8 14205 faclbnd2 14253 sqrt4 15234 amgm2 15332 ef01bndlem 16151 cos2bnd 16155 pythagtriplem1 16787 4sqlem12 16927 2exp4 17055 2exp5 17056 efmnd2hash 18862 lt6abl 19870 csbren 25366 minveclem2 25393 sincos6thpi 26480 heron 26802 quad2 26803 dcubic2 26808 mcubic 26811 dquartlem2 26816 dquart 26817 quart1 26820 quartlem1 26821 chtublem 27174 chtub 27175 bclbnd 27243 bposlem6 27252 bposlem8 27254 addsqnreup 27406 addsq2nreurex 27407 chebbnd1lem3 27434 chebbnd1 27435 ipidsq 30781 minvecolem2 30946 normpar2i 31227 iconstr 33910 constrresqrtcl 33921 cos9thpiminplylem1 33926 sqsscirc1 34052 lcmineqlem21 42488 aks4d1p1p7 42513 aks4d1p1p5 42514 flt4lem5e 43089 wallispi2lem1 46499 stirlinglem3 46504 stirlinglem10 46511 fmtno1 48004 fmtno2 48013 fmtnofac1 48033 m2prm 48054 lighneallem2 48069 lighneallem4a 48071 nprmdvdsfacm1lem2 48084 exple2lt6 48840 ackval3 49159 ackval42 49172 ackval42a 49173 itsclc0yqsollem1 49238 itscnhlinecirc02plem1 49258 |
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