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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 11198 | . . 3 ⊢ 0 ∈ ℂ | |
| 2 | absval 15289 | . . 3 ⊢ (0 ∈ ℂ → (abs‘0) = (√‘(0 · (∗‘0)))) | |
| 3 | 1, 2 | ax-mp 5 | . 2 ⊢ (abs‘0) = (√‘(0 · (∗‘0))) |
| 4 | 1 | cjcli 15220 | . . . 4 ⊢ (∗‘0) ∈ ℂ |
| 5 | 4 | mul02i 11399 | . . 3 ⊢ (0 · (∗‘0)) = 0 |
| 6 | 5 | fveq2i 6885 | . 2 ⊢ (√‘(0 · (∗‘0))) = (√‘0) |
| 7 | sqrt0 15292 | . 2 ⊢ (√‘0) = 0 | |
| 8 | 3, 6, 7 | 3eqtri 2796 | 1 ⊢ (abs‘0) = 0 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1567 ∈ wcel 2149 ‘cfv 6537 (class class class)co 7411 ℂcc 11098 0cc0 11100 · cmul 11105 ∗ccj 15147 √csqrt 15284 abscabs 15285 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-10 2182 ax-11 2198 ax-12 2219 ax-ext 2741 ax-sep 5261 ax-nul 5271 ax-pow 5337 ax-pr 5405 ax-un 7733 ax-cnex 11156 ax-resscn 11157 ax-1cn 11158 ax-icn 11159 ax-addcl 11160 ax-addrcl 11161 ax-mulcl 11162 ax-mulrcl 11163 ax-mulcom 11164 ax-addass 11165 ax-mulass 11166 ax-distr 11167 ax-i2m1 11168 ax-1ne0 11169 ax-1rid 11170 ax-rnegex 11171 ax-rrecex 11172 ax-cnre 11173 ax-pre-lttri 11174 ax-pre-lttrn 11175 ax-pre-ltadd 11176 ax-pre-mulgt0 11177 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-nf 1811 df-sb 2098 df-mo 2573 df-eu 2603 df-clab 2748 df-cleq 2761 df-clel 2844 df-nfc 2918 df-ne 2965 df-nel 3071 df-ral 3086 df-rex 3096 df-rmo 3376 df-reu 3377 df-rab 3424 df-v 3465 df-sbc 3754 df-csb 3862 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-pss 3933 df-nul 4295 df-if 4493 df-pw 4569 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4877 df-iun 4962 df-br 5114 df-opab 5178 df-mpt 5197 df-tr 5223 df-id 5557 df-eprel 5562 df-po 5570 df-so 5571 df-fr 5615 df-we 5617 df-xp 5668 df-rel 5669 df-cnv 5670 df-co 5671 df-dm 5672 df-rn 5673 df-res 5674 df-ima 5675 df-pred 6303 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-riota 7368 df-ov 7414 df-oprab 7415 df-mpo 7416 df-om 7863 df-2nd 7987 df-frecs 8278 df-wrecs 8309 df-recs 8358 df-rdg 8397 df-er 8694 df-en 8944 df-dom 8945 df-sdom 8946 df-pnf 11245 df-mnf 11246 df-xr 11247 df-ltxr 11248 df-le 11249 df-sub 11443 df-neg 11444 df-div 11872 df-nn 12234 df-2 12303 df-n0 12505 df-z 12592 df-uz 12863 df-rp 13017 df-seq 14038 df-exp 14098 df-cj 15150 df-re 15151 df-im 15152 df-sqrt 15286 df-abs 15287 |
| This theorem is referenced by: abs00 15340 abs1m 15387 climconst 15594 rlimconst 15595 fsumabs 15853 georeclim 15926 geoisumr 15932 dvdsabseq 16371 gcd0id 16577 lcmid 16667 4sqlem19 17023 absabv 21543 gzrngunit 21552 zringunit 21585 aannenlem2 26459 aalioulem3 26464 tanabsge 26637 sinkpi 26653 sineq0 26655 isosctrlem2 26950 lgamgulmlem1 27159 ftalem3 27205 mule1 27278 zabsle1 27426 lgslem2 27428 lgsfcl2 27433 bcsiALT 31472 0cnfn 32273 nmfn0 32280 nmophmi 32324 nmcfnexi 32344 dnizeq0 36953 unbdqndv2lem2 36988 mblfinlem2 38197 ftc1anclem7 38238 ftc1anclem8 38239 ftc1anc 38240 dvgrat 44914 radcnvrat 44916 sineq0ALT 45537 constlimc 46232 0cnv 46348 mod2addne 47996 |
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