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| Description: Natural number property expressed in terms of integers. |
| Ref | Expression |
|---|---|
| elnnz |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nnret 5828 |
. . . . 5
| |
| 2 | orc 269 |
. . . . 5
| |
| 3 | 1, 2 | jca 288 |
. . . 4
|
| 4 | nngt0t 5845 |
. . . 4
| |
| 5 | 3, 4 | jca 288 |
. . 3
|
| 6 | idd 61 |
. . . . . . 7
| |
| 7 | lt0neg2t 5593 |
. . . . . . . . . . . . 13
| |
| 8 | renegclt 5360 |
. . . . . . . . . . . . . 14
| |
| 9 | 0re 5363 |
. . . . . . . . . . . . . . 15
| |
| 10 | ltnsymt 5456 |
. . . . . . . . . . . . . . 15
| |
| 11 | 9, 10 | mpan2 693 |
. . . . . . . . . . . . . 14
|
| 12 | 8, 11 | syl 10 |
. . . . . . . . . . . . 13
|
| 13 | 7, 12 | sylbid 203 |
. . . . . . . . . . . 12
|
| 14 | 13 | imp 350 |
. . . . . . . . . . 11
|
| 15 | nngt0t 5845 |
. . . . . . . . . . 11
| |
| 16 | 14, 15 | nsyl 116 |
. . . . . . . . . 10
|
| 17 | gt0ne0t 5543 |
. . . . . . . . . . 11
| |
| 18 | df-ne 1563 |
. . . . . . . . . . 11
| |
| 19 | 17, 18 | sylib 198 |
. . . . . . . . . 10
|
| 20 | 16, 19 | jca 288 |
. . . . . . . . 9
|
| 21 | ioran 306 |
. . . . . . . . 9
| |
| 22 | 20, 21 | sylibr 200 |
. . . . . . . 8
|
| 23 | 22 | pm2.21d 78 |
. . . . . . 7
|
| 24 | 6, 23 | jaod 424 |
. . . . . 6
|
| 25 | 24 | ex 373 |
. . . . 5
|
| 26 | 25 | com23 32 |
. . . 4
|
| 27 | 26 | imp31 362 |
. . 3
|
| 28 | 5, 27 | impbi 157 |
. 2
|
| 29 | elz 6035 |
. . . 4
| |
| 30 | 3orrot 778 |
. . . . . 6
| |
| 31 | 3orass 775 |
. . . . . 6
| |
| 32 | 30, 31 | bitr 173 |
. . . . 5
|
| 33 | 32 | anbi2i 479 |
. . . 4
|
| 34 | 29, 33 | bitr 173 |
. . 3
|
| 35 | 34 | anbi1i 480 |
. 2
|
| 36 | 28, 35 | bitr4 176 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: elnn0z 6045 nnssz 6049 nn0subt 6059 elnn0nn 6069 elnnnn0b 6071 znnsubt 6075 msqznn 6094 sqr2irr 6610 eftlexOLD 7270 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-4 951 ax-5 952 ax-6 953 ax-7 954 ax-gen 955 ax-8 1101 ax-9 1102 ax-10 1103 ax-12 1104 ax-13 1107 ax-14 1108 ax-11 1180 ax-17 1190 ax-16 1194 ax-11o 1202 ax-ext 1436 ax-rep 2661 ax-sep 2671 ax-nul 2678 ax-pow 2710 ax-pr 2747 ax-un 2830 ax-inf2 4549 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-3or 773 df-3an 774 df-ex 957 df-sb 1155 df-eu 1359 df-mo 1360 df-clab 1441 df-cleq 1446 df-clel 1449 df-ne 1563 df-nel 1564 df-ral 1625 df-rex 1626 df-reu 1627 df-rab 1628 df-v 1787 df-sbc 1913 df-csb 1973 df-dif 2020 df-un 2021 df-in 2022 df-ss 2024 df-pss 2026 df-nul 2252 df-if 2333 df-pw 2373 df-sn 2383 df-pr 2384 df-tp 2386 df-op 2387 df-uni 2472 df-int 2502 df-iun 2536 df-br 2588 df-opab 2635 df-tr 2649 df-eprel 2794 df-id 2797 df-po 2804 df-so 2814 df-fr 2880 df-we 2897 df-ord 2914 df-on 2915 df-lim 2916 df-suc 2917 df-om 3095 df-xp 3147 df-rel 3148 df-cnv 3149 df-co 3150 df-dm 3151 df-rn 3152 df-res 3153 df-ima 3154 df-fun 3155 df-fn 3156 df-f 3157 df-f1 3158 df-fo 3159 df-f1o 3160 df-fv 3161 df-rdg 3871 df-opr 3904 df-oprab 3905 df-1st 4017 df-2nd 4018 df-1o 4071 df-oadd 4073 df-omul 4074 df-er 4199 df-ec 4201 df-qs 4204 df-en 4305 df-dom 4306 df-sdom 4307 df-ni 4923 df-pli 4924 df-mi 4925 df-lti 4926 df-plpq 4958 df-mpq 4959 df-enq 4960 df-nq 4961 df-plq 4962 df-mq 4963 df-rq 4964 df-ltq 4965 df-1q 4966 df-np 5009 df-1p 5010 df-plp 5011 df-mp 5012 df-ltp 5013 df-plpr 5087 df-mpr 5088 df-enr 5089 df-nr 5090 df-plr 5091 df-mr 5092 df-ltr 5093 df-0r 5094 df-1r 5095 df-m1r 5096 df-c 5163 df-0 5164 df-1 5165 df-i 5166 df-r 5167 df-plus 5168 df-mul 5169 df-lt 5170 df-sub 5279 df-neg 5281 df-pnf 5410 df-mnf 5411 df-xr 5412 df-ltxr 5413 df-le 5414 df-n 5824 df-z 6034 |