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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 5280 |
. . 3
| |
| 2 | 1re 5435 |
. . . 4
| |
| 3 | 2 | msqgt0 5613 |
. . 3
|
| 4 | 1, 3 | ax-mp 7 |
. 2
|
| 5 | ax1cn 5269 |
. . 3
| |
| 6 | 5 | mulid1 5332 |
. 2
|
| 7 | 4, 6 | breqtr 2638 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: eqneg 5804 elimgt0 5809 ltp1t 5811 recgt0i 5814 ltm1t 5815 mulgt1t 5845 lemulge11t 5848 recgt0t 5861 reclt1t 5898 recgt1t 5899 recgt1it 5900 recp1lt1 5901 recrecltt 5902 halfpos 5904 posex 5908 nnge1t 5943 nngt0t 5946 0nnn 5948 nnrecgt0t 5953 nnleltp1t 5954 2pos 5989 3pos 5991 4pos 5992 5pos 5993 6pos 5994 7pos 5995 8pos 5996 9pos 5997 10pos 5998 halflt1 6030 lt0nnn0 6116 elnnz1 6155 zltp1let 6181 recnzt 6191 rpexpclt 6582 expgt0t 6589 expge0t 6591 expordit 6600 exple1t 6607 expnbndt 6654 expnlbndt 6655 nnesq 6662 sqrlem1 6673 sqrlem2 6674 sqrlem3 6675 sqrlem6 6678 sqrlem8 6680 sqrlem9 6681 sqrlem10 6682 sqrlem11 6683 sqrlem16 6688 sqrlem19 6691 sqrlem20 6692 sqrlem21 6693 sqrlem22 6694 sqr1 6716 sqr2gt1lt2 6719 inelr 6735 nthruz 6746 absexpt 6868 abs1m 6904 caubnd 6926 faclbnd3 6947 faclbnd4lem1 6948 bcpasc 6969 climmullem1 7120 climmullem2 7121 climmullem3 7122 climmullem4 7123 fnsmnt 7226 expcnvlem2 7228 expcnvlem5 7231 geolim 7237 geolim1 7239 georeclim 7240 geoisumr 7243 mulc1cncf 7279 efcltlem1 7304 ef01tlub 7386 absef01tlub 7388 eirrlem4 7392 efgt0 7404 eflegeolem2 7414 eflegeot 7416 efm1legeot 7418 efcnlem4 7422 reeff1olem1 7424 sinbndt 7465 cosbndt 7466 cos1bnd 7474 sin01gt0 7476 sincos1sgn 7479 blex 7849 opnm 7860 tgioolem 7914 dscmet 7918 caun0 7945 nvm1 8292 nvmtri 8299 nv1 8304 sm1cnilem 8347 nmosetn0 8428 nmo0 8451 blocnilem 8464 minveclem25 8569 sinhalfpilem 8679 efifolem1 8722 efifolem5 8726 efifolem7 8728 log1 8766 normlem7tALT 8985 norm-ii 9004 normsub 9008 norm1t 9121 projlem2 9187 projlem6 9191 projlem28 9213 nmopsetn0 9792 nmfnsetn0 9805 nmopge0t 9835 nmfnge0t 9851 0cnop 9903 0cnfn 9904 nmop0 9910 nmfn0 9911 nmcopexlem2 9952 nmcopexlem5 9955 nmcfnexlem2 9981 nmcfnexlem5 9984 hstle1t 10153 strlem1 10177 strlem3a 10179 strlem5 10182 jplem1 10195 iintlem2 10633 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 962 ax-gen 963 ax-8 964 ax-9 965 ax-10 966 ax-11 967 ax-12 968 ax-13 969 ax-14 970 ax-17 971 ax-4 973 ax-5o 975 ax-6o 978 ax-9o 1123 ax-10o 1140 ax-16 1210 ax-11o 1218 ax-ext 1459 ax-rep 2693 ax-sep 2703 ax-nul 2710 ax-pow 2742 ax-pr 2779 ax-un 2866 ax-inf2 4625 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-3or 776 df-3an 777 df-ex 981 df-sb 1172 df-eu 1382 df-mo 1383 df-clab 1464 df-cleq 1469 df-clel 1472 df-ne 1587 df-nel 1588 df-ral 1649 df-rex 1650 df-reu 1651 df-rab 1652 df-v 1812 df-sbc 1942 df-csb 2002 df-dif 2049 df-un 2050 df-in 2051 df-ss 2053 df-pss 2055 df-nul 2281 df-if 2362 df-pw 2402 df-sn 2412 df-pr 2413 df-tp 2415 df-op 2416 df-uni 2504 df-int 2534 df-iun 2568 df-br 2620 df-opab 2667 df-tr 2681 df-eprel 2832 df-id 2835 df-po 2840 df-so 2850 df-fr 2917 df-we 2934 df-ord 2951 df-on 2952 df-lim 2953 df-suc 2954 df-om 3132 df-xp 3184 df-rel 3185 df-cnv 3186 df-co 3187 df-dm 3188 df-rn 3189 df-res 3190 df-ima 3191 df-fun 3192 df-fn 3193 df-f 3194 df-f1 3195 df-fo 3196 df-f1o 3197 df-fv 3198 df-rdg 3932 df-opr 3965 df-oprab 3966 df-1st 4079 df-2nd 4080 df-1o 4133 df-oadd 4135 df-omul 4136 df-er 4261 df-ec 4263 df-qs 4266 df-en 4368 df-dom 4369 df-sdom 4370 df-ni 5000 df-pli 5001 df-mi 5002 df-lti 5003 df-plpq 5035 df-mpq 5036 df-enq 5037 df-nq 5038 df-plq 5039 df-mq 5040 df-rq 5041 df-ltq 5042 df-1q 5043 df-np 5086 df-1p 5087 df-plp 5088 df-mp 5089 df-ltp 5090 df-plpr 5164 df-mpr 5165 df-enr 5166 df-nr 5167 df-plr 5168 df-mr 5169 df-ltr 5170 df-0r 5171 df-1r 5172 df-m1r 5173 df-c 5240 df-0 5241 df-1 5242 df-i 5243 df-r 5244 df-plus 5245 df-mul 5246 df-lt 5247 df-sub 5356 df-neg 5358 df-pnf 5487 df-mnf 5488 df-xr 5489 df-ltxr 5490 df-le 5491 |