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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 11172 | . . 3 ⊢ 0 ∈ ℂ | |
| 2 | absval 15210 | . . 3 ⊢ (0 ∈ ℂ → (abs‘0) = (√‘(0 · (∗‘0)))) | |
| 3 | 1, 2 | ax-mp 5 | . 2 ⊢ (abs‘0) = (√‘(0 · (∗‘0))) |
| 4 | 1 | cjcli 15141 | . . . 4 ⊢ (∗‘0) ∈ ℂ |
| 5 | 4 | mul02i 11369 | . . 3 ⊢ (0 · (∗‘0)) = 0 |
| 6 | 5 | fveq2i 6863 | . 2 ⊢ (√‘(0 · (∗‘0))) = (√‘0) |
| 7 | sqrt0 15213 | . 2 ⊢ (√‘0) = 0 | |
| 8 | 3, 6, 7 | 3eqtri 2757 | 1 ⊢ (abs‘0) = 0 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1540 ∈ wcel 2109 ‘cfv 6513 (class class class)co 7389 ℂcc 11072 0cc0 11074 · cmul 11079 ∗ccj 15068 √csqrt 15205 abscabs 15206 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2702 ax-sep 5253 ax-nul 5263 ax-pow 5322 ax-pr 5389 ax-un 7713 ax-cnex 11130 ax-resscn 11131 ax-1cn 11132 ax-icn 11133 ax-addcl 11134 ax-addrcl 11135 ax-mulcl 11136 ax-mulrcl 11137 ax-mulcom 11138 ax-addass 11139 ax-mulass 11140 ax-distr 11141 ax-i2m1 11142 ax-1ne0 11143 ax-1rid 11144 ax-rnegex 11145 ax-rrecex 11146 ax-cnre 11147 ax-pre-lttri 11148 ax-pre-lttrn 11149 ax-pre-ltadd 11150 ax-pre-mulgt0 11151 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2534 df-eu 2563 df-clab 2709 df-cleq 2722 df-clel 2804 df-nfc 2879 df-ne 2927 df-nel 3031 df-ral 3046 df-rex 3055 df-rmo 3356 df-reu 3357 df-rab 3409 df-v 3452 df-sbc 3756 df-csb 3865 df-dif 3919 df-un 3921 df-in 3923 df-ss 3933 df-pss 3936 df-nul 4299 df-if 4491 df-pw 4567 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4874 df-iun 4959 df-br 5110 df-opab 5172 df-mpt 5191 df-tr 5217 df-id 5535 df-eprel 5540 df-po 5548 df-so 5549 df-fr 5593 df-we 5595 df-xp 5646 df-rel 5647 df-cnv 5648 df-co 5649 df-dm 5650 df-rn 5651 df-res 5652 df-ima 5653 df-pred 6276 df-ord 6337 df-on 6338 df-lim 6339 df-suc 6340 df-iota 6466 df-fun 6515 df-fn 6516 df-f 6517 df-f1 6518 df-fo 6519 df-f1o 6520 df-fv 6521 df-riota 7346 df-ov 7392 df-oprab 7393 df-mpo 7394 df-om 7845 df-2nd 7971 df-frecs 8262 df-wrecs 8293 df-recs 8342 df-rdg 8380 df-er 8673 df-en 8921 df-dom 8922 df-sdom 8923 df-pnf 11216 df-mnf 11217 df-xr 11218 df-ltxr 11219 df-le 11220 df-sub 11413 df-neg 11414 df-div 11842 df-nn 12188 df-2 12250 df-n0 12449 df-z 12536 df-uz 12800 df-rp 12958 df-seq 13973 df-exp 14033 df-cj 15071 df-re 15072 df-im 15073 df-sqrt 15207 df-abs 15208 |
| This theorem is referenced by: abs00 15261 abs1m 15308 climconst 15515 rlimconst 15516 fsumabs 15773 georeclim 15844 geoisumr 15850 dvdsabseq 16289 gcd0id 16495 lcmid 16585 4sqlem19 16940 absabv 21347 gzrngunit 21356 zringunit 21382 aannenlem2 26243 aalioulem3 26248 tanabsge 26421 sinkpi 26437 sineq0 26439 isosctrlem2 26735 lgamgulmlem1 26945 ftalem3 26991 mule1 27064 zabsle1 27213 lgslem2 27215 lgsfcl2 27220 bcsiALT 31114 0cnfn 31915 nmfn0 31922 nmophmi 31966 nmcfnexi 31986 dnizeq0 36458 unbdqndv2lem2 36493 mblfinlem2 37647 ftc1anclem7 37688 ftc1anclem8 37689 ftc1anc 37690 dvgrat 44294 radcnvrat 44296 sineq0ALT 44919 constlimc 45615 0cnv 45733 mod2addne 47355 |
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