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Mirrors > Home > ILE Home > Th. List > znnen | Unicode version |
Description: The set of integers and the set of positive integers are equinumerous. Corollary 8.1.23 of [AczelRathjen], p. 75. (Contributed by NM, 31-Jul-2004.) |
Ref | Expression |
---|---|
znnen |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | unrab 3388 | . . 3 | |
2 | nnssz 9199 | . . . . . 6 | |
3 | dfss1 3321 | . . . . . 6 | |
4 | 2, 3 | mpbi 144 | . . . . 5 |
5 | dfin5 3118 | . . . . 5 | |
6 | 4, 5 | eqtr3i 2187 | . . . 4 |
7 | 6 | uneq1i 3267 | . . 3 |
8 | rabid2 2640 | . . . 4 | |
9 | elznn 9198 | . . . . 5 | |
10 | 9 | simprbi 273 | . . . 4 |
11 | 8, 10 | mprgbir 2522 | . . 3 |
12 | 1, 7, 11 | 3eqtr4ri 2196 | . 2 |
13 | nnex 8854 | . . . 4 | |
14 | 13 | enref 6722 | . . 3 |
15 | zex 9191 | . . . . . 6 | |
16 | 15 | rabex 4120 | . . . . 5 |
17 | nn0ex 9111 | . . . . 5 | |
18 | negeq 8082 | . . . . . . . 8 | |
19 | 18 | eleq1d 2233 | . . . . . . 7 |
20 | 19 | elrab 2877 | . . . . . 6 |
21 | 20 | simprbi 273 | . . . . 5 |
22 | negeq 8082 | . . . . . . 7 | |
23 | 22 | eleq1d 2233 | . . . . . 6 |
24 | nn0negz 9216 | . . . . . 6 | |
25 | nn0cn 9115 | . . . . . . . . 9 | |
26 | 25 | negnegd 8191 | . . . . . . . 8 |
27 | 26 | eleq1d 2233 | . . . . . . 7 |
28 | 27 | ibir 176 | . . . . . 6 |
29 | 23, 24, 28 | elrabd 2879 | . . . . 5 |
30 | elrabi 2874 | . . . . . . . 8 | |
31 | 30 | adantr 274 | . . . . . . 7 |
32 | 31 | zcnd 9305 | . . . . . 6 |
33 | 25 | adantl 275 | . . . . . 6 |
34 | negcon2 8142 | . . . . . 6 | |
35 | 32, 33, 34 | syl2anc 409 | . . . . 5 |
36 | 16, 17, 21, 29, 35 | en3i 6728 | . . . 4 |
37 | nn0ennn 10358 | . . . 4 | |
38 | 36, 37 | entri 6743 | . . 3 |
39 | inrab2 3390 | . . . 4 | |
40 | incom 3309 | . . . 4 | |
41 | rabeq0 3433 | . . . . 5 | |
42 | 0red 7891 | . . . . . . . 8 | |
43 | simpl 108 | . . . . . . . . 9 | |
44 | 43 | nnred 8861 | . . . . . . . 8 |
45 | nngt0 8873 | . . . . . . . . 9 | |
46 | 45 | adantr 274 | . . . . . . . 8 |
47 | nn0ge0 9130 | . . . . . . . . . 10 | |
48 | 47 | adantl 275 | . . . . . . . . 9 |
49 | 44 | le0neg1d 8406 | . . . . . . . . 9 |
50 | 48, 49 | mpbird 166 | . . . . . . . 8 |
51 | 42, 44, 42, 46, 50 | ltletrd 8312 | . . . . . . 7 |
52 | 42 | ltnrd 8001 | . . . . . . 7 |
53 | 51, 52 | pm2.65da 651 | . . . . . 6 |
54 | 53, 4 | eleq2s 2259 | . . . . 5 |
55 | 41, 54 | mprgbir 2522 | . . . 4 |
56 | 39, 40, 55 | 3eqtr3i 2193 | . . 3 |
57 | unennn 12267 | . . 3 | |
58 | 14, 38, 56, 57 | mp3an 1326 | . 2 |
59 | 12, 58 | eqbrtri 3997 | 1 |
Colors of variables: wff set class |
Syntax hints: wn 3 wa 103 wb 104 wo 698 wceq 1342 wcel 2135 crab 2446 cun 3109 cin 3110 wss 3111 c0 3404 class class class wbr 3976 cen 6695 cc 7742 cr 7743 cc0 7744 clt 7924 cle 7925 cneg 8061 cn 8848 cn0 9105 cz 9182 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 604 ax-in2 605 ax-io 699 ax-5 1434 ax-7 1435 ax-gen 1436 ax-ie1 1480 ax-ie2 1481 ax-8 1491 ax-10 1492 ax-11 1493 ax-i12 1494 ax-bndl 1496 ax-4 1497 ax-17 1513 ax-i9 1517 ax-ial 1521 ax-i5r 1522 ax-13 2137 ax-14 2138 ax-ext 2146 ax-sep 4094 ax-pow 4147 ax-pr 4181 ax-un 4405 ax-setind 4508 ax-cnex 7835 ax-resscn 7836 ax-1cn 7837 ax-1re 7838 ax-icn 7839 ax-addcl 7840 ax-addrcl 7841 ax-mulcl 7842 ax-mulrcl 7843 ax-addcom 7844 ax-mulcom 7845 ax-addass 7846 ax-mulass 7847 ax-distr 7848 ax-i2m1 7849 ax-0lt1 7850 ax-1rid 7851 ax-0id 7852 ax-rnegex 7853 ax-precex 7854 ax-cnre 7855 ax-pre-ltirr 7856 ax-pre-ltwlin 7857 ax-pre-lttrn 7858 ax-pre-apti 7859 ax-pre-ltadd 7860 ax-pre-mulgt0 7861 ax-pre-mulext 7862 ax-arch 7863 |
This theorem depends on definitions: df-bi 116 df-dc 825 df-3or 968 df-3an 969 df-tru 1345 df-fal 1348 df-xor 1365 df-nf 1448 df-sb 1750 df-eu 2016 df-mo 2017 df-clab 2151 df-cleq 2157 df-clel 2160 df-nfc 2295 df-ne 2335 df-nel 2430 df-ral 2447 df-rex 2448 df-reu 2449 df-rmo 2450 df-rab 2451 df-v 2723 df-sbc 2947 df-csb 3041 df-dif 3113 df-un 3115 df-in 3117 df-ss 3124 df-nul 3405 df-pw 3555 df-sn 3576 df-pr 3577 df-op 3579 df-uni 3784 df-int 3819 df-iun 3862 df-br 3977 df-opab 4038 df-mpt 4039 df-id 4265 df-po 4268 df-iso 4269 df-xp 4604 df-rel 4605 df-cnv 4606 df-co 4607 df-dm 4608 df-rn 4609 df-res 4610 df-ima 4611 df-iota 5147 df-fun 5184 df-fn 5185 df-f 5186 df-f1 5187 df-fo 5188 df-f1o 5189 df-fv 5190 df-riota 5792 df-ov 5839 df-oprab 5840 df-mpo 5841 df-1st 6100 df-2nd 6101 df-er 6492 df-en 6698 df-pnf 7926 df-mnf 7927 df-xr 7928 df-ltxr 7929 df-le 7930 df-sub 8062 df-neg 8063 df-reap 8464 df-ap 8471 df-div 8560 df-inn 8849 df-2 8907 df-n0 9106 df-z 9183 df-q 9549 df-rp 9581 df-fl 10195 df-mod 10248 df-dvds 11714 |
This theorem is referenced by: qnnen 12301 |
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