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Mirrors > Home > MPE Home > Th. List > abs0 | Structured version Visualization version GIF version |
Description: The absolute value of 0. (Contributed by NM, 26-Mar-2005.) (Revised by Mario Carneiro, 29-May-2016.) |
Ref | Expression |
---|---|
abs0 | ⊢ (abs‘0) = 0 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 0cn 10790 | . . 3 ⊢ 0 ∈ ℂ | |
2 | absval 14766 | . . 3 ⊢ (0 ∈ ℂ → (abs‘0) = (√‘(0 · (∗‘0)))) | |
3 | 1, 2 | ax-mp 5 | . 2 ⊢ (abs‘0) = (√‘(0 · (∗‘0))) |
4 | 1 | cjcli 14697 | . . . 4 ⊢ (∗‘0) ∈ ℂ |
5 | 4 | mul02i 10986 | . . 3 ⊢ (0 · (∗‘0)) = 0 |
6 | 5 | fveq2i 6698 | . 2 ⊢ (√‘(0 · (∗‘0))) = (√‘0) |
7 | sqrt0 14770 | . 2 ⊢ (√‘0) = 0 | |
8 | 3, 6, 7 | 3eqtri 2763 | 1 ⊢ (abs‘0) = 0 |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1543 ∈ wcel 2112 ‘cfv 6358 (class class class)co 7191 ℂcc 10692 0cc0 10694 · cmul 10699 ∗ccj 14624 √csqrt 14761 abscabs 14762 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1976 ax-7 2018 ax-8 2114 ax-9 2122 ax-10 2143 ax-11 2160 ax-12 2177 ax-ext 2708 ax-sep 5177 ax-nul 5184 ax-pow 5243 ax-pr 5307 ax-un 7501 ax-cnex 10750 ax-resscn 10751 ax-1cn 10752 ax-icn 10753 ax-addcl 10754 ax-addrcl 10755 ax-mulcl 10756 ax-mulrcl 10757 ax-mulcom 10758 ax-addass 10759 ax-mulass 10760 ax-distr 10761 ax-i2m1 10762 ax-1ne0 10763 ax-1rid 10764 ax-rnegex 10765 ax-rrecex 10766 ax-cnre 10767 ax-pre-lttri 10768 ax-pre-lttrn 10769 ax-pre-ltadd 10770 ax-pre-mulgt0 10771 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 848 df-3or 1090 df-3an 1091 df-tru 1546 df-fal 1556 df-ex 1788 df-nf 1792 df-sb 2073 df-mo 2539 df-eu 2568 df-clab 2715 df-cleq 2728 df-clel 2809 df-nfc 2879 df-ne 2933 df-nel 3037 df-ral 3056 df-rex 3057 df-reu 3058 df-rmo 3059 df-rab 3060 df-v 3400 df-sbc 3684 df-csb 3799 df-dif 3856 df-un 3858 df-in 3860 df-ss 3870 df-pss 3872 df-nul 4224 df-if 4426 df-pw 4501 df-sn 4528 df-pr 4530 df-tp 4532 df-op 4534 df-uni 4806 df-iun 4892 df-br 5040 df-opab 5102 df-mpt 5121 df-tr 5147 df-id 5440 df-eprel 5445 df-po 5453 df-so 5454 df-fr 5494 df-we 5496 df-xp 5542 df-rel 5543 df-cnv 5544 df-co 5545 df-dm 5546 df-rn 5547 df-res 5548 df-ima 5549 df-pred 6140 df-ord 6194 df-on 6195 df-lim 6196 df-suc 6197 df-iota 6316 df-fun 6360 df-fn 6361 df-f 6362 df-f1 6363 df-fo 6364 df-f1o 6365 df-fv 6366 df-riota 7148 df-ov 7194 df-oprab 7195 df-mpo 7196 df-om 7623 df-2nd 7740 df-wrecs 8025 df-recs 8086 df-rdg 8124 df-er 8369 df-en 8605 df-dom 8606 df-sdom 8607 df-pnf 10834 df-mnf 10835 df-xr 10836 df-ltxr 10837 df-le 10838 df-sub 11029 df-neg 11030 df-div 11455 df-nn 11796 df-2 11858 df-n0 12056 df-z 12142 df-uz 12404 df-rp 12552 df-seq 13540 df-exp 13601 df-cj 14627 df-re 14628 df-im 14629 df-sqrt 14763 df-abs 14764 |
This theorem is referenced by: abs00 14818 abs1m 14864 climconst 15069 rlimconst 15070 fsumabs 15328 georeclim 15399 geoisumr 15405 dvdsabseq 15837 gcd0id 16041 lcmid 16129 4sqlem19 16479 absabv 20374 gzrngunit 20383 zringunit 20407 aannenlem2 25176 aalioulem3 25181 tanabsge 25350 sinkpi 25365 sineq0 25367 isosctrlem2 25656 lgamgulmlem1 25865 ftalem3 25911 mule1 25984 zabsle1 26131 lgslem2 26133 lgsfcl2 26138 bcsiALT 29214 0cnfn 30015 nmfn0 30022 nmophmi 30066 nmcfnexi 30086 dnizeq0 34341 unbdqndv2lem2 34376 mblfinlem2 35501 ftc1anclem7 35542 ftc1anclem8 35543 ftc1anc 35544 dvgrat 41544 radcnvrat 41546 sineq0ALT 42171 constlimc 42783 0cnv 42901 |
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