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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 11130 | . . 3 ⊢ 0 ∈ ℂ | |
| 2 | absval 15194 | . . 3 ⊢ (0 ∈ ℂ → (abs‘0) = (√‘(0 · (∗‘0)))) | |
| 3 | 1, 2 | ax-mp 5 | . 2 ⊢ (abs‘0) = (√‘(0 · (∗‘0))) |
| 4 | 1 | cjcli 15125 | . . . 4 ⊢ (∗‘0) ∈ ℂ |
| 5 | 4 | mul02i 11329 | . . 3 ⊢ (0 · (∗‘0)) = 0 |
| 6 | 5 | fveq2i 6838 | . 2 ⊢ (√‘(0 · (∗‘0))) = (√‘0) |
| 7 | sqrt0 15197 | . 2 ⊢ (√‘0) = 0 | |
| 8 | 3, 6, 7 | 3eqtri 2764 | 1 ⊢ (abs‘0) = 0 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1542 ∈ wcel 2114 ‘cfv 6493 (class class class)co 7361 ℂcc 11030 0cc0 11032 · cmul 11037 ∗ccj 15052 √csqrt 15189 abscabs 15190 |
| 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 2709 ax-sep 5232 ax-nul 5242 ax-pow 5303 ax-pr 5371 ax-un 7683 ax-cnex 11088 ax-resscn 11089 ax-1cn 11090 ax-icn 11091 ax-addcl 11092 ax-addrcl 11093 ax-mulcl 11094 ax-mulrcl 11095 ax-mulcom 11096 ax-addass 11097 ax-mulass 11098 ax-distr 11099 ax-i2m1 11100 ax-1ne0 11101 ax-1rid 11102 ax-rnegex 11103 ax-rrecex 11104 ax-cnre 11105 ax-pre-lttri 11106 ax-pre-lttrn 11107 ax-pre-ltadd 11108 ax-pre-mulgt0 11109 |
| 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 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-rmo 3343 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5520 df-eprel 5525 df-po 5533 df-so 5534 df-fr 5578 df-we 5580 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-res 5637 df-ima 5638 df-pred 6260 df-ord 6321 df-on 6322 df-lim 6323 df-suc 6324 df-iota 6449 df-fun 6495 df-fn 6496 df-f 6497 df-f1 6498 df-fo 6499 df-f1o 6500 df-fv 6501 df-riota 7318 df-ov 7364 df-oprab 7365 df-mpo 7366 df-om 7812 df-2nd 7937 df-frecs 8225 df-wrecs 8256 df-recs 8305 df-rdg 8343 df-er 8637 df-en 8888 df-dom 8889 df-sdom 8890 df-pnf 11175 df-mnf 11176 df-xr 11177 df-ltxr 11178 df-le 11179 df-sub 11373 df-neg 11374 df-div 11802 df-nn 12169 df-2 12238 df-n0 12432 df-z 12519 df-uz 12783 df-rp 12937 df-seq 13958 df-exp 14018 df-cj 15055 df-re 15056 df-im 15057 df-sqrt 15191 df-abs 15192 |
| This theorem is referenced by: abs00 15245 abs1m 15292 climconst 15499 rlimconst 15500 fsumabs 15758 georeclim 15831 geoisumr 15837 dvdsabseq 16276 gcd0id 16482 lcmid 16572 4sqlem19 16928 absabv 21417 gzrngunit 21426 zringunit 21459 aannenlem2 26309 aalioulem3 26314 tanabsge 26486 sinkpi 26502 sineq0 26504 isosctrlem2 26799 lgamgulmlem1 27009 ftalem3 27055 mule1 27128 zabsle1 27276 lgslem2 27278 lgsfcl2 27283 bcsiALT 31268 0cnfn 32069 nmfn0 32076 nmophmi 32120 nmcfnexi 32140 dnizeq0 36754 unbdqndv2lem2 36789 mblfinlem2 37996 ftc1anclem7 38037 ftc1anclem8 38038 ftc1anc 38039 dvgrat 44760 radcnvrat 44762 sineq0ALT 45384 constlimc 46075 0cnv 46191 mod2addne 47833 |
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