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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 11700 | . . 3 ⊢ 2 ∈ ℂ | |
2 | 1 | sqvali 13531 | . 2 ⊢ (2↑2) = (2 · 2) |
3 | 2t2e4 11789 | . 2 ⊢ (2 · 2) = 4 | |
4 | 2, 3 | eqtri 2841 | 1 ⊢ (2↑2) = 4 |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1528 (class class class)co 7145 · cmul 10530 2c2 11680 4c4 11682 ↑cexp 13417 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1787 ax-4 1801 ax-5 1902 ax-6 1961 ax-7 2006 ax-8 2107 ax-9 2115 ax-10 2136 ax-11 2151 ax-12 2167 ax-ext 2790 ax-sep 5194 ax-nul 5201 ax-pow 5257 ax-pr 5320 ax-un 7450 ax-cnex 10581 ax-resscn 10582 ax-1cn 10583 ax-icn 10584 ax-addcl 10585 ax-addrcl 10586 ax-mulcl 10587 ax-mulrcl 10588 ax-mulcom 10589 ax-addass 10590 ax-mulass 10591 ax-distr 10592 ax-i2m1 10593 ax-1ne0 10594 ax-1rid 10595 ax-rnegex 10596 ax-rrecex 10597 ax-cnre 10598 ax-pre-lttri 10599 ax-pre-lttrn 10600 ax-pre-ltadd 10601 ax-pre-mulgt0 10602 |
This theorem depends on definitions: df-bi 208 df-an 397 df-or 842 df-3or 1080 df-3an 1081 df-tru 1531 df-ex 1772 df-nf 1776 df-sb 2061 df-mo 2615 df-eu 2647 df-clab 2797 df-cleq 2811 df-clel 2890 df-nfc 2960 df-ne 3014 df-nel 3121 df-ral 3140 df-rex 3141 df-reu 3142 df-rab 3144 df-v 3494 df-sbc 3770 df-csb 3881 df-dif 3936 df-un 3938 df-in 3940 df-ss 3949 df-pss 3951 df-nul 4289 df-if 4464 df-pw 4537 df-sn 4558 df-pr 4560 df-tp 4562 df-op 4564 df-uni 4831 df-iun 4912 df-br 5058 df-opab 5120 df-mpt 5138 df-tr 5164 df-id 5453 df-eprel 5458 df-po 5467 df-so 5468 df-fr 5507 df-we 5509 df-xp 5554 df-rel 5555 df-cnv 5556 df-co 5557 df-dm 5558 df-rn 5559 df-res 5560 df-ima 5561 df-pred 6141 df-ord 6187 df-on 6188 df-lim 6189 df-suc 6190 df-iota 6307 df-fun 6350 df-fn 6351 df-f 6352 df-f1 6353 df-fo 6354 df-f1o 6355 df-fv 6356 df-riota 7103 df-ov 7148 df-oprab 7149 df-mpo 7150 df-om 7570 df-2nd 7679 df-wrecs 7936 df-recs 7997 df-rdg 8035 df-er 8278 df-en 8498 df-dom 8499 df-sdom 8500 df-pnf 10665 df-mnf 10666 df-xr 10667 df-ltxr 10668 df-le 10669 df-sub 10860 df-neg 10861 df-nn 11627 df-2 11688 df-3 11689 df-4 11690 df-n0 11886 df-z 11970 df-uz 12232 df-seq 13358 df-exp 13418 |
This theorem is referenced by: sq4e2t8 13550 cu2 13551 sqoddm1div8 13592 faclbnd2 13639 sqrt4 14620 amgm2 14717 ef01bndlem 15525 cos2bnd 15529 pythagtriplem1 16141 4sqlem12 16280 2exp4 16409 lt6abl 18944 csbren 23929 minveclem2 23956 sincos6thpi 25028 heron 25343 quad2 25344 dcubic2 25349 mcubic 25352 dquartlem2 25357 dquart 25358 quart1 25361 quartlem1 25362 chtublem 25714 chtub 25715 bclbnd 25783 bposlem6 25792 bposlem8 25794 addsqnreup 25946 addsq2nreurex 25947 chebbnd1lem3 25974 chebbnd1 25975 ipidsq 28414 minvecolem2 28579 normpar2i 28860 sqsscirc1 31050 wallispi2lem1 42233 stirlinglem3 42238 stirlinglem10 42245 fmtno1 43580 fmtno2 43589 fmtnofac1 43609 m2prm 43630 2exp5 43632 lighneallem2 43648 lighneallem4a 43650 efmnd2hash 43991 exple2lt6 44340 itsclc0yqsollem1 44677 itscnhlinecirc02plem1 44697 |
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