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| Description: 0 is less than 1. Theorem I.21 of [Apostol] p. 20. |
| Ref | Expression |
|---|---|
| lt01 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ax1ne0 5252 |
. . 3
| |
| 2 | 1re 5407 |
. . . 4
| |
| 3 | 2 | msqgt0 5587 |
. . 3
|
| 4 | 1, 3 | ax-mp 7 |
. 2
|
| 5 | ax1cn 5241 |
. . 3
| |
| 6 | 5 | mulid1 5304 |
. 2
|
| 7 | 4, 6 | breqtr 2628 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: eqneg 5760 elimgt0 5765 ltp1t 5767 recgt0i 5770 ltm1t 5771 mulgt1t 5801 lemulge11t 5804 recgt0t 5815 reclt1t 5846 recgt1t 5847 recgt1it 5848 recp1lt1 5849 recrecltt 5850 halfpos 5852 posex 5856 nnge1t 5891 nngt0t 5894 0nnn 5896 nnrecgt0t 5900 nnleltp1t 5901 2pos 5936 3pos 5938 4pos 5939 5pos 5940 6pos 5941 7pos 5942 8pos 5943 9pos 5944 10pos 5945 halflt1 5977 lt0nnn0 6063 elnnz1 6102 zltp1let 6128 recnzt 6138 rpexpclt 6514 expgt0t 6520 expge0t 6522 expordit 6531 exple1t 6538 expnbndt 6585 nnesq 6592 sqrlem1 6603 sqrlem2 6604 sqrlem3 6605 sqrlem6 6608 sqrlem8 6610 sqrlem9 6611 sqrlem10 6612 sqrlem11 6613 sqrlem16 6618 sqrlem19 6621 sqrlem20 6622 sqrlem21 6623 sqrlem22 6624 sqr1 6646 sqr2gt1lt2 6649 inelr 6665 nthruz 6677 absexpt 6803 abs1m 6841 caubnd 6863 faclbnd3 6884 faclbnd4lem1 6885 bcpasc 6907 climmullem1 7056 climmullem2 7057 climmullem3 7058 climmullem4 7059 fnsmnt 7161 expcnvlem2 7163 expcnvlem5 7166 geolim 7172 geolim1 7174 georeclim 7175 geoisumr 7178 mulc1cncf 7214 efcltlem1 7246 ef01tlub 7327 absef01tlub 7329 eirrlem4 7333 efgt0 7345 eflegeolem2 7354 eflegeot 7356 efm1legeot 7358 efcnlem4 7362 reeff1olem1 7364 reeff1olem1OLD 7366 sinbndt 7407 cosbndt 7408 cos1bnd 7416 sin01gt0 7418 sincos1sgn 7421 blex 7789 opnm 7800 tgioolem 7853 dscmet 7856 caun0 7880 nvm1 8231 nvmtri 8238 nv1 8243 sm1cnilem 8281 nmosetn0 8360 nmo0 8383 blocnilem 8395 minveclem25 8500 sinhalfpilem 8598 efifolem1 8637 efifolem5 8641 efifolem7 8643 circgrpOLD 8658 log1 8688 log1OLD 8707 normlem7tALT 8906 norm-ii 8925 normsub 8929 norm1t 9042 projlem2 9103 projlem6 9107 projlem28 9129 nmopsetn0 9709 nmfnsetn0 9722 nmopge0t 9751 nmfnge0t 9767 0cnop 9819 0cnfn 9820 nmop0 9826 nmfn0 9827 nmcopexlem2 9867 nmcopexlem5 9870 nmcfnexlem2 9896 nmcfnexlem5 9899 hstle1t 10063 strlem1 10087 strlem3a 10089 strlem5 10092 jplem1 10105 iintlem2 10477 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 959 ax-gen 960 ax-8 961 ax-9 962 ax-10 963 ax-11 964 ax-12 965 ax-13 966 ax-14 967 ax-17 968 ax-4 970 ax-5o 972 ax-6o 975 ax-9o 1119 ax-10o 1136 ax-16 1206 ax-11o 1213 ax-ext 1452 ax-rep 2683 ax-sep 2693 ax-nul 2700 ax-pow 2732 ax-pr 2769 ax-un 2857 ax-inf2 4597 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-3or 774 df-3an 775 df-ex 978 df-sb 1168 df-eu 1375 df-mo 1376 df-clab 1457 df-cleq 1462 df-clel 1465 df-ne 1579 df-nel 1580 df-ral 1641 df-rex 1642 df-reu 1643 df-rab 1644 df-v 1803 df-sbc 1932 df-csb 1992 df-dif 2039 df-un 2040 df-in 2041 df-ss 2043 df-pss 2045 df-nul 2271 df-if 2352 df-pw 2392 df-sn 2402 df-pr 2403 df-tp 2405 df-op 2406 df-uni 2494 df-int 2524 df-iun 2558 df-br 2610 df-opab 2657 df-tr 2671 df-eprel 2821 df-id 2824 df-po 2831 df-so 2841 df-fr 2907 df-we 2924 df-ord 2941 df-on 2942 df-lim 2943 df-suc 2944 df-om 3122 df-xp 3174 df-rel 3175 df-cnv 3176 df-co 3177 df-dm 3178 df-rn 3179 df-res 3180 df-ima 3181 df-fun 3182 df-fn 3183 df-f 3184 df-f1 3185 df-fo 3186 df-f1o 3187 df-fv 3188 df-rdg 3917 df-opr 3950 df-oprab 3951 df-1st 4063 df-2nd 4064 df-1o 4117 df-oadd 4119 df-omul 4120 df-er 4245 df-ec 4247 df-qs 4250 df-en 4351 df-dom 4352 df-sdom 4353 df-ni 4972 df-pli 4973 df-mi 4974 df-lti 4975 df-plpq 5007 df-mpq 5008 df-enq 5009 df-nq 5010 df-plq 5011 df-mq 5012 df-rq 5013 df-ltq 5014 df-1q 5015 df-np 5058 df-1p 5059 df-plp 5060 df-mp 5061 df-ltp 5062 df-plpr 5136 df-mpr 5137 df-enr 5138 df-nr 5139 df-plr 5140 df-mr 5141 df-ltr 5142 df-0r 5143 df-1r 5144 df-m1r 5145 df-c 5212 df-0 5213 df-1 5214 df-i 5215 df-r 5216 df-plus 5217 df-mul 5218 df-lt 5219 df-sub 5328 df-neg 5330 df-pnf 5459 df-mnf 5460 df-xr 5461 df-ltxr 5462 df-le 5463 |