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Mirrors > Home > ILE Home > Th. List > elz2 | Unicode version |
Description: Membership in the set of integers. Commonly used in constructions of the integers as equivalence classes under subtraction of the positive integers. (Contributed by Mario Carneiro, 16-May-2014.) |
Ref | Expression |
---|---|
elz2 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elznn0 9093 | . 2 | |
2 | nn0p1nn 9040 | . . . . . 6 | |
3 | 2 | adantl 275 | . . . . 5 |
4 | 1nn 8755 | . . . . . 6 | |
5 | 4 | a1i 9 | . . . . 5 |
6 | recn 7777 | . . . . . . . 8 | |
7 | 6 | adantr 274 | . . . . . . 7 |
8 | ax-1cn 7737 | . . . . . . 7 | |
9 | pncan 7992 | . . . . . . 7 | |
10 | 7, 8, 9 | sylancl 410 | . . . . . 6 |
11 | 10 | eqcomd 2146 | . . . . 5 |
12 | rspceov 5821 | . . . . 5 | |
13 | 3, 5, 11, 12 | syl3anc 1217 | . . . 4 |
14 | 4 | a1i 9 | . . . . 5 |
15 | 6 | adantr 274 | . . . . . . 7 |
16 | negsub 8034 | . . . . . . 7 | |
17 | 8, 15, 16 | sylancr 411 | . . . . . 6 |
18 | simpr 109 | . . . . . . 7 | |
19 | nnnn0addcl 9031 | . . . . . . 7 | |
20 | 4, 18, 19 | sylancr 411 | . . . . . 6 |
21 | 17, 20 | eqeltrrd 2218 | . . . . 5 |
22 | nncan 8015 | . . . . . . 7 | |
23 | 8, 15, 22 | sylancr 411 | . . . . . 6 |
24 | 23 | eqcomd 2146 | . . . . 5 |
25 | rspceov 5821 | . . . . 5 | |
26 | 14, 21, 24, 25 | syl3anc 1217 | . . . 4 |
27 | 13, 26 | jaodan 787 | . . 3 |
28 | nnre 8751 | . . . . . . 7 | |
29 | nnre 8751 | . . . . . . 7 | |
30 | resubcl 8050 | . . . . . . 7 | |
31 | 28, 29, 30 | syl2an 287 | . . . . . 6 |
32 | nnz 9097 | . . . . . . . 8 | |
33 | nnz 9097 | . . . . . . . 8 | |
34 | zletric 9122 | . . . . . . . 8 | |
35 | 32, 33, 34 | syl2anr 288 | . . . . . . 7 |
36 | nnnn0 9008 | . . . . . . . . 9 | |
37 | nnnn0 9008 | . . . . . . . . 9 | |
38 | nn0sub 9144 | . . . . . . . . 9 | |
39 | 36, 37, 38 | syl2anr 288 | . . . . . . . 8 |
40 | nn0sub 9144 | . . . . . . . . . 10 | |
41 | 37, 36, 40 | syl2an 287 | . . . . . . . . 9 |
42 | nncn 8752 | . . . . . . . . . . 11 | |
43 | nncn 8752 | . . . . . . . . . . 11 | |
44 | negsubdi2 8045 | . . . . . . . . . . 11 | |
45 | 42, 43, 44 | syl2an 287 | . . . . . . . . . 10 |
46 | 45 | eleq1d 2209 | . . . . . . . . 9 |
47 | 41, 46 | bitr4d 190 | . . . . . . . 8 |
48 | 39, 47 | orbi12d 783 | . . . . . . 7 |
49 | 35, 48 | mpbid 146 | . . . . . 6 |
50 | 31, 49 | jca 304 | . . . . 5 |
51 | eleq1 2203 | . . . . . 6 | |
52 | eleq1 2203 | . . . . . . 7 | |
53 | negeq 7979 | . . . . . . . 8 | |
54 | 53 | eleq1d 2209 | . . . . . . 7 |
55 | 52, 54 | orbi12d 783 | . . . . . 6 |
56 | 51, 55 | anbi12d 465 | . . . . 5 |
57 | 50, 56 | syl5ibrcom 156 | . . . 4 |
58 | 57 | rexlimivv 2558 | . . 3 |
59 | 27, 58 | impbii 125 | . 2 |
60 | 1, 59 | bitri 183 | 1 |
Colors of variables: wff set class |
Syntax hints: wa 103 wb 104 wo 698 wceq 1332 wcel 1481 wrex 2418 class class class wbr 3937 (class class class)co 5782 cc 7642 cr 7643 c1 7645 caddc 7647 cle 7825 cmin 7957 cneg 7958 cn 8744 cn0 9001 cz 9078 |
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 1424 ax-7 1425 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-8 1483 ax-10 1484 ax-11 1485 ax-i12 1486 ax-bndl 1487 ax-4 1488 ax-13 1492 ax-14 1493 ax-17 1507 ax-i9 1511 ax-ial 1515 ax-i5r 1516 ax-ext 2122 ax-sep 4054 ax-pow 4106 ax-pr 4139 ax-un 4363 ax-setind 4460 ax-cnex 7735 ax-resscn 7736 ax-1cn 7737 ax-1re 7738 ax-icn 7739 ax-addcl 7740 ax-addrcl 7741 ax-mulcl 7742 ax-addcom 7744 ax-addass 7746 ax-distr 7748 ax-i2m1 7749 ax-0lt1 7750 ax-0id 7752 ax-rnegex 7753 ax-cnre 7755 ax-pre-ltirr 7756 ax-pre-ltwlin 7757 ax-pre-lttrn 7758 ax-pre-ltadd 7760 |
This theorem depends on definitions: df-bi 116 df-3or 964 df-3an 965 df-tru 1335 df-fal 1338 df-nf 1438 df-sb 1737 df-eu 2003 df-mo 2004 df-clab 2127 df-cleq 2133 df-clel 2136 df-nfc 2271 df-ne 2310 df-nel 2405 df-ral 2422 df-rex 2423 df-reu 2424 df-rab 2426 df-v 2691 df-sbc 2914 df-dif 3078 df-un 3080 df-in 3082 df-ss 3089 df-pw 3517 df-sn 3538 df-pr 3539 df-op 3541 df-uni 3745 df-int 3780 df-br 3938 df-opab 3998 df-id 4223 df-xp 4553 df-rel 4554 df-cnv 4555 df-co 4556 df-dm 4557 df-iota 5096 df-fun 5133 df-fv 5139 df-riota 5738 df-ov 5785 df-oprab 5786 df-mpo 5787 df-pnf 7826 df-mnf 7827 df-xr 7828 df-ltxr 7829 df-le 7830 df-sub 7959 df-neg 7960 df-inn 8745 df-n0 9002 df-z 9079 |
This theorem is referenced by: dfz2 9147 |
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