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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 11136 | . . 3 ⊢ 0 ∈ ℂ | |
| 2 | absval 15200 | . . 3 ⊢ (0 ∈ ℂ → (abs‘0) = (√‘(0 · (∗‘0)))) | |
| 3 | 1, 2 | ax-mp 5 | . 2 ⊢ (abs‘0) = (√‘(0 · (∗‘0))) |
| 4 | 1 | cjcli 15131 | . . . 4 ⊢ (∗‘0) ∈ ℂ |
| 5 | 4 | mul02i 11335 | . . 3 ⊢ (0 · (∗‘0)) = 0 |
| 6 | 5 | fveq2i 6843 | . 2 ⊢ (√‘(0 · (∗‘0))) = (√‘0) |
| 7 | sqrt0 15203 | . 2 ⊢ (√‘0) = 0 | |
| 8 | 3, 6, 7 | 3eqtri 2763 | 1 ⊢ (abs‘0) = 0 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1542 ∈ wcel 2114 ‘cfv 6498 (class class class)co 7367 ℂcc 11036 0cc0 11038 · cmul 11043 ∗ccj 15058 √csqrt 15195 abscabs 15196 |
| 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-rmo 3342 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-div 11808 df-nn 12175 df-2 12244 df-n0 12438 df-z 12525 df-uz 12789 df-rp 12943 df-seq 13964 df-exp 14024 df-cj 15061 df-re 15062 df-im 15063 df-sqrt 15197 df-abs 15198 |
| This theorem is referenced by: abs00 15251 abs1m 15298 climconst 15505 rlimconst 15506 fsumabs 15764 georeclim 15837 geoisumr 15843 dvdsabseq 16282 gcd0id 16488 lcmid 16578 4sqlem19 16934 absabv 21404 gzrngunit 21413 zringunit 21446 aannenlem2 26295 aalioulem3 26300 tanabsge 26470 sinkpi 26486 sineq0 26488 isosctrlem2 26783 lgamgulmlem1 26992 ftalem3 27038 mule1 27111 zabsle1 27259 lgslem2 27261 lgsfcl2 27266 bcsiALT 31250 0cnfn 32051 nmfn0 32058 nmophmi 32102 nmcfnexi 32122 dnizeq0 36735 unbdqndv2lem2 36770 mblfinlem2 37979 ftc1anclem7 38020 ftc1anclem8 38021 ftc1anc 38022 dvgrat 44739 radcnvrat 44741 sineq0ALT 45363 constlimc 46054 0cnv 46170 mod2addne 47818 |
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