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Mirrors > Home > MPE Home > Th. List > negnegd | Structured version Visualization version GIF version |
Description: A number is equal to the negative of its negative. Theorem I.4 of [Apostol] p. 18. (Contributed by Mario Carneiro, 27-May-2016.) |
Ref | Expression |
---|---|
negidd.1 | ⊢ (𝜑 → 𝐴 ∈ ℂ) |
Ref | Expression |
---|---|
negnegd | ⊢ (𝜑 → --𝐴 = 𝐴) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | negidd.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℂ) | |
2 | negneg 10930 | . 2 ⊢ (𝐴 ∈ ℂ → --𝐴 = 𝐴) | |
3 | 1, 2 | syl 17 | 1 ⊢ (𝜑 → --𝐴 = 𝐴) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1533 ∈ wcel 2110 ℂcc 10529 -cneg 10865 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1907 ax-6 1966 ax-7 2011 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2157 ax-12 2173 ax-ext 2793 ax-sep 5195 ax-nul 5202 ax-pow 5258 ax-pr 5321 ax-un 7455 ax-resscn 10588 ax-1cn 10589 ax-icn 10590 ax-addcl 10591 ax-addrcl 10592 ax-mulcl 10593 ax-mulrcl 10594 ax-mulcom 10595 ax-addass 10596 ax-mulass 10597 ax-distr 10598 ax-i2m1 10599 ax-1ne0 10600 ax-1rid 10601 ax-rnegex 10602 ax-rrecex 10603 ax-cnre 10604 ax-pre-lttri 10605 ax-pre-lttrn 10606 ax-pre-ltadd 10607 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1536 df-ex 1777 df-nf 1781 df-sb 2066 df-mo 2618 df-eu 2650 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-nel 3124 df-ral 3143 df-rex 3144 df-reu 3145 df-rab 3147 df-v 3496 df-sbc 3772 df-csb 3883 df-dif 3938 df-un 3940 df-in 3942 df-ss 3951 df-nul 4291 df-if 4467 df-pw 4540 df-sn 4561 df-pr 4563 df-op 4567 df-uni 4832 df-br 5059 df-opab 5121 df-mpt 5139 df-id 5454 df-po 5468 df-so 5469 df-xp 5555 df-rel 5556 df-cnv 5557 df-co 5558 df-dm 5559 df-rn 5560 df-res 5561 df-ima 5562 df-iota 6308 df-fun 6351 df-fn 6352 df-f 6353 df-f1 6354 df-fo 6355 df-f1o 6356 df-fv 6357 df-riota 7108 df-ov 7153 df-oprab 7154 df-mpo 7155 df-er 8283 df-en 8504 df-dom 8505 df-sdom 8506 df-pnf 10671 df-mnf 10672 df-ltxr 10674 df-sub 10866 df-neg 10867 |
This theorem is referenced by: negn0 11063 ltnegcon1 11135 ltnegcon2 11136 lenegcon1 11138 lenegcon2 11139 negfi 11583 fiminreOLD 11584 infm3lem 11593 infrenegsup 11618 zeo 12062 zindd 12077 znnn0nn 12088 supminf 12329 zsupss 12331 max0sub 12583 xnegneg 12601 ceilid 13213 expneg 13431 expaddzlem 13466 expaddz 13467 cjcj 14493 cnpart 14593 risefallfac 15372 sincossq 15523 bitsf1 15789 pcid 16203 4sqlem10 16277 mulgnegnn 18232 mulgsubcl 18236 mulgneg 18240 mulgz 18249 mulgass 18258 ghmmulg 18364 cyggeninv 18996 tgpmulg 22695 xrhmeo 23544 cphsqrtcl3 23785 iblneg 24397 itgneg 24398 ditgswap 24451 lhop2 24606 vieta1lem2 24894 ptolemy 25076 tanabsge 25086 tanord 25116 tanregt0 25117 lognegb 25167 logtayl 25237 logtayl2 25239 cxpmul2z 25268 isosctrlem2 25391 dcubic 25418 dquart 25425 atans2 25503 amgmlem 25561 lgamucov 25609 basellem5 25656 basellem9 25660 lgsdir2lem4 25898 dchrisum0flblem1 26078 ostth3 26208 ipasslem3 28604 ftc1anclem6 34966 dffltz 39264 rexzrexnn0 39394 acongsym 39566 acongneg2 39567 acongtr 39568 binomcxplemnotnn0 40681 infnsuprnmpt 41515 ltmulneg 41657 rexabslelem 41685 supminfrnmpt 41712 leneg2d 41716 leneg3d 41726 supminfxr 41733 climliminflimsupd 42075 itgsin0pilem1 42228 itgsinexplem1 42232 itgsincmulx 42252 stoweidlem13 42292 fourierdlem39 42425 fourierdlem43 42429 fourierdlem44 42430 etransclem46 42559 hoicvr 42824 smfinflem 43085 sigariz 43114 sigaradd 43117 sqrtnegnre 43501 requad01 43780 itsclc0yqsol 44745 amgmwlem 44897 |
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