| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 15380 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (abs‘(𝐴 − 𝐵)) = (abs‘(𝐵 − 𝐴))) | |
| 4 | 1, 2, 3 | syl2anc 595 | 1 ⊢ (𝜑 → (abs‘(𝐴 − 𝐵)) = (abs‘(𝐵 − 𝐴))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1570 ∈ wcel 2143 ‘cfv 6538 (class class class)co 7412 ℂcc 11099 − cmin 11442 abscabs 15287 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-sep 5258 ax-nul 5270 ax-pow 5338 ax-pr 5406 ax-un 7734 ax-resscn 11158 ax-1cn 11159 ax-icn 11160 ax-addcl 11161 ax-addrcl 11162 ax-mulcl 11163 ax-mulrcl 11164 ax-mulcom 11165 ax-addass 11166 ax-mulass 11167 ax-distr 11168 ax-i2m1 11169 ax-1ne0 11170 ax-1rid 11171 ax-rnegex 11172 ax-rrecex 11173 ax-cnre 11174 ax-pre-lttri 11175 ax-pre-lttrn 11176 ax-pre-ltadd 11177 ax-pre-mulgt0 11178 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-nf 1814 df-sb 2097 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-nel 3065 df-ral 3080 df-rex 3090 df-rmo 3369 df-reu 3370 df-rab 3417 df-v 3457 df-sbc 3746 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-pss 3926 df-nul 4288 df-if 4489 df-pw 4565 df-sn 4591 df-pr 4593 df-op 4597 df-uni 4874 df-iun 4959 df-br 5111 df-opab 5175 df-mpt 5194 df-tr 5220 df-id 5558 df-eprel 5563 df-po 5571 df-so 5572 df-fr 5616 df-we 5618 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-pred 6304 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-riota 7369 df-ov 7415 df-oprab 7416 df-mpo 7417 df-om 7864 df-2nd 7988 df-frecs 8279 df-wrecs 8310 df-recs 8359 df-rdg 8398 df-er 8695 df-en 8945 df-dom 8946 df-sdom 8947 df-pnf 11246 df-mnf 11247 df-xr 11248 df-ltxr 11249 df-le 11250 df-sub 11444 df-neg 11445 df-div 11873 df-nn 12235 df-2 12304 df-cj 15152 df-re 15153 df-im 15154 df-abs 15289 |
| This theorem is referenced by: rlimuni 15603 climuni 15605 2clim 15625 rlimrecl 15633 subcn2 15648 reccn2 15650 climcau 15724 caucvgrlem 15726 serf0 15734 mertenslem2 15941 xrsxmet 24948 elcncf2 25030 cnllycmp 25096 dvlip 26133 c1lip1 26137 dvfsumrlim2 26172 dvfsum2 26174 ftc1a 26177 aalioulem3 26478 ulmcaulem 26538 ulmcau 26539 ulmbdd 26542 ulmcn 26543 ulmdvlem1 26544 logcnlem4 26791 ssscongptld 26968 chordthmlem3 26980 chordthmlem4 26981 lgamucov 27183 ftalem2 27219 logfacrlim 27369 dchrisumlem3 27636 dchrisum0lem1b 27660 mulog2sumlem2 27680 pntrlog2bndlem3 27724 smcnlem 31030 constrrtcc 34106 iconstr 34137 qqhucn 34363 dnibndlem2 37049 dnibndlem6 37053 dnibndlem8 37055 dnibnd 37061 unbdqndv2lem1 37079 knoppndvlem10 37091 knoppndvlem15 37096 ftc1anclem8 38332 irrapxlem3 43534 irrapxlem5 43536 pell14qrgt0 43569 acongeq 43693 absimlere 46176 limcrecl 46328 islpcn 46336 lptre2pt 46337 0ellimcdiv 46346 limclner 46348 dvbdfbdioolem2 46626 ioodvbdlimc1lem1 46628 ioodvbdlimc1lem2 46629 ioodvbdlimc2lem 46631 fourierdlem42 46846 ioorrnopnlem 47001 smflimlem4 47471 |
| Copyright terms: Public domain | W3C validator |