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Mirrors > Home > MPE Home > Th. List > abs1 | Structured version Visualization version GIF version |
Description: The absolute value of one is one. (Contributed by David A. Wheeler, 16-Jul-2016.) |
Ref | Expression |
---|---|
abs1 | ⊢ (abs‘1) = 1 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 1re 10641 | . 2 ⊢ 1 ∈ ℝ | |
2 | 0le1 11163 | . 2 ⊢ 0 ≤ 1 | |
3 | absid 14656 | . 2 ⊢ ((1 ∈ ℝ ∧ 0 ≤ 1) → (abs‘1) = 1) | |
4 | 1, 2, 3 | mp2an 690 | 1 ⊢ (abs‘1) = 1 |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1537 ∈ wcel 2114 class class class wbr 5066 ‘cfv 6355 ℝcr 10536 0cc0 10537 1c1 10538 ≤ cle 10676 abscabs 14593 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2793 ax-sep 5203 ax-nul 5210 ax-pow 5266 ax-pr 5330 ax-un 7461 ax-cnex 10593 ax-resscn 10594 ax-1cn 10595 ax-icn 10596 ax-addcl 10597 ax-addrcl 10598 ax-mulcl 10599 ax-mulrcl 10600 ax-mulcom 10601 ax-addass 10602 ax-mulass 10603 ax-distr 10604 ax-i2m1 10605 ax-1ne0 10606 ax-1rid 10607 ax-rnegex 10608 ax-rrecex 10609 ax-cnre 10610 ax-pre-lttri 10611 ax-pre-lttrn 10612 ax-pre-ltadd 10613 ax-pre-mulgt0 10614 ax-pre-sup 10615 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 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 3773 df-csb 3884 df-dif 3939 df-un 3941 df-in 3943 df-ss 3952 df-pss 3954 df-nul 4292 df-if 4468 df-pw 4541 df-sn 4568 df-pr 4570 df-tp 4572 df-op 4574 df-uni 4839 df-iun 4921 df-br 5067 df-opab 5129 df-mpt 5147 df-tr 5173 df-id 5460 df-eprel 5465 df-po 5474 df-so 5475 df-fr 5514 df-we 5516 df-xp 5561 df-rel 5562 df-cnv 5563 df-co 5564 df-dm 5565 df-rn 5566 df-res 5567 df-ima 5568 df-pred 6148 df-ord 6194 df-on 6195 df-lim 6196 df-suc 6197 df-iota 6314 df-fun 6357 df-fn 6358 df-f 6359 df-f1 6360 df-fo 6361 df-f1o 6362 df-fv 6363 df-riota 7114 df-ov 7159 df-oprab 7160 df-mpo 7161 df-om 7581 df-2nd 7690 df-wrecs 7947 df-recs 8008 df-rdg 8046 df-er 8289 df-en 8510 df-dom 8511 df-sdom 8512 df-sup 8906 df-pnf 10677 df-mnf 10678 df-xr 10679 df-ltxr 10680 df-le 10681 df-sub 10872 df-neg 10873 df-div 11298 df-nn 11639 df-2 11701 df-3 11702 df-n0 11899 df-z 11983 df-uz 12245 df-rp 12391 df-seq 13371 df-exp 13431 df-cj 14458 df-re 14459 df-im 14460 df-sqrt 14594 df-abs 14595 |
This theorem is referenced by: absexp 14664 absexpz 14665 iseraltlem3 15040 geolim 15226 geolim2 15227 georeclim 15228 geoisum1c 15236 efieq1re 15552 eirrlem 15557 3lcm2e6woprm 15959 4sqlem13 16293 4sqlem19 16299 gzrngunit 20611 ncvsm1 23758 dvlipcn 24591 dvfsumabs 24620 geolim3 24928 abelthlem1 25019 abelthlem2 25020 coskpi 25108 sineq0 25109 logtayl 25243 abscxpbnd 25334 root1cj 25337 bndatandm 25507 lgamgulmlem2 25607 lgamgulmlem5 25610 mule1 25725 logfacbnd3 25799 dchrabs 25836 zabsle1 25872 lgslem2 25874 lgsfcl2 25879 lgseisen 25955 2sqlem9 26003 2sqlem10 26004 nvm1 28442 nvmtri 28448 normlem7tALT 28896 norm-ii-i 28914 normsubi 28918 qqhval2lem 31222 qqh0 31225 subfaclim 32435 nn0rppwr 39202 binomcxplemrat 40702 sineq0ALT 41291 fprodabs2 41896 |
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