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Mirrors > Home > MPE Home > Th. List > abssubd | Structured version Visualization version GIF version |
Description: Swapping order of subtraction doesn't change the absolute value. Example of [Apostol] p. 363. (Contributed by Mario Carneiro, 29-May-2016.) |
Ref | Expression |
---|---|
abscld.1 | ⊢ (𝜑 → 𝐴 ∈ ℂ) |
abssubd.2 | ⊢ (𝜑 → 𝐵 ∈ ℂ) |
Ref | Expression |
---|---|
abssubd | ⊢ (𝜑 → (abs‘(𝐴 − 𝐵)) = (abs‘(𝐵 − 𝐴))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | abscld.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℂ) | |
2 | abssubd.2 | . 2 ⊢ (𝜑 → 𝐵 ∈ ℂ) | |
3 | abssub 14680 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (abs‘(𝐴 − 𝐵)) = (abs‘(𝐵 − 𝐴))) | |
4 | 1, 2, 3 | syl2anc 586 | 1 ⊢ (𝜑 → (abs‘(𝐴 − 𝐵)) = (abs‘(𝐵 − 𝐴))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1533 ∈ wcel 2110 ‘cfv 6349 (class class class)co 7150 ℂcc 10529 − cmin 10864 abscabs 14587 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1907 ax-6 1966 ax-7 2011 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2157 ax-12 2173 ax-ext 2793 ax-sep 5195 ax-nul 5202 ax-pow 5258 ax-pr 5321 ax-un 7455 ax-resscn 10588 ax-1cn 10589 ax-icn 10590 ax-addcl 10591 ax-addrcl 10592 ax-mulcl 10593 ax-mulrcl 10594 ax-mulcom 10595 ax-addass 10596 ax-mulass 10597 ax-distr 10598 ax-i2m1 10599 ax-1ne0 10600 ax-1rid 10601 ax-rnegex 10602 ax-rrecex 10603 ax-cnre 10604 ax-pre-lttri 10605 ax-pre-lttrn 10606 ax-pre-ltadd 10607 ax-pre-mulgt0 10608 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1536 df-ex 1777 df-nf 1781 df-sb 2066 df-mo 2618 df-eu 2650 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-nel 3124 df-ral 3143 df-rex 3144 df-reu 3145 df-rmo 3146 df-rab 3147 df-v 3496 df-sbc 3772 df-csb 3883 df-dif 3938 df-un 3940 df-in 3942 df-ss 3951 df-nul 4291 df-if 4467 df-pw 4540 df-sn 4561 df-pr 4563 df-op 4567 df-uni 4832 df-br 5059 df-opab 5121 df-mpt 5139 df-id 5454 df-po 5468 df-so 5469 df-xp 5555 df-rel 5556 df-cnv 5557 df-co 5558 df-dm 5559 df-rn 5560 df-res 5561 df-ima 5562 df-iota 6308 df-fun 6351 df-fn 6352 df-f 6353 df-f1 6354 df-fo 6355 df-f1o 6356 df-fv 6357 df-riota 7108 df-ov 7153 df-oprab 7154 df-mpo 7155 df-er 8283 df-en 8504 df-dom 8505 df-sdom 8506 df-pnf 10671 df-mnf 10672 df-xr 10673 df-ltxr 10674 df-le 10675 df-sub 10866 df-neg 10867 df-div 11292 df-2 11694 df-cj 14452 df-re 14453 df-im 14454 df-abs 14589 |
This theorem is referenced by: rlimuni 14901 climuni 14903 2clim 14923 rlimrecl 14931 subcn2 14945 reccn2 14947 climcau 15021 caucvgrlem 15023 serf0 15031 mertenslem2 15235 xrsxmet 23411 elcncf2 23492 cnllycmp 23554 dvlip 24584 c1lip1 24588 dvfsumrlim2 24623 dvfsum2 24625 ftc1a 24628 aalioulem3 24917 ulmcaulem 24976 ulmcau 24977 ulmbdd 24980 ulmcn 24981 ulmdvlem1 24982 logcnlem4 25222 ssscongptld 25394 chordthmlem3 25406 chordthmlem4 25407 lgamucov 25609 ftalem2 25645 logfacrlim 25794 dchrisumlem3 26061 dchrisum0lem1b 26085 mulog2sumlem2 26105 pntrlog2bndlem3 26149 smcnlem 28468 qqhucn 31228 dnibndlem2 33813 dnibndlem6 33817 dnibndlem8 33819 dnibnd 33825 unbdqndv2lem1 33843 knoppndvlem10 33855 knoppndvlem15 33860 ftc1anclem8 34968 irrapxlem3 39414 irrapxlem5 39416 pell14qrgt0 39449 acongeq 39573 absimlere 41749 limcrecl 41903 islpcn 41913 lptre2pt 41914 0ellimcdiv 41923 limclner 41925 dvbdfbdioolem2 42207 ioodvbdlimc1lem1 42209 ioodvbdlimc1lem2 42210 ioodvbdlimc2lem 42212 fourierdlem42 42428 ioorrnopnlem 42583 smflimlem4 43044 |
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