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Mirrors > Home > ILE Home > Th. List > fzdcel | Unicode version |
Description: Decidability of membership in a finite interval of integers. (Contributed by Jim Kingdon, 1-Jun-2020.) |
Ref | Expression |
---|---|
fzdcel | DECID |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fztri3or 9812 | . 2 | |
2 | zltnle 9093 | . . . . . . 7 | |
3 | 2 | 3adant3 1001 | . . . . . 6 |
4 | simpl 108 | . . . . . . 7 | |
5 | 4 | con3i 621 | . . . . . 6 |
6 | 3, 5 | syl6bi 162 | . . . . 5 |
7 | elfz 9789 | . . . . . 6 | |
8 | 7 | biimpd 143 | . . . . 5 |
9 | 6, 8 | nsyld 637 | . . . 4 |
10 | olc 700 | . . . . 5 | |
11 | df-dc 820 | . . . . 5 DECID | |
12 | 10, 11 | sylibr 133 | . . . 4 DECID |
13 | 9, 12 | syl6 33 | . . 3 DECID |
14 | orc 701 | . . . . 5 | |
15 | 14, 11 | sylibr 133 | . . . 4 DECID |
16 | 15 | a1i 9 | . . 3 DECID |
17 | zltnle 9093 | . . . . . . . 8 | |
18 | 17 | ancoms 266 | . . . . . . 7 |
19 | 18 | 3adant2 1000 | . . . . . 6 |
20 | simpr 109 | . . . . . . 7 | |
21 | 20 | con3i 621 | . . . . . 6 |
22 | 19, 21 | syl6bi 162 | . . . . 5 |
23 | 22, 8 | nsyld 637 | . . . 4 |
24 | 23, 12 | syl6 33 | . . 3 DECID |
25 | 13, 16, 24 | 3jaod 1282 | . 2 DECID |
26 | 1, 25 | mpd 13 | 1 DECID |
Colors of variables: wff set class |
Syntax hints: wn 3 wi 4 wa 103 wb 104 wo 697 DECID wdc 819 w3o 961 w3a 962 wcel 1480 class class class wbr 3924 (class class class)co 5767 clt 7793 cle 7794 cz 9047 cfz 9783 |
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 603 ax-in2 604 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-13 1491 ax-14 1492 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2119 ax-sep 4041 ax-pow 4093 ax-pr 4126 ax-un 4350 ax-setind 4447 ax-cnex 7704 ax-resscn 7705 ax-1cn 7706 ax-1re 7707 ax-icn 7708 ax-addcl 7709 ax-addrcl 7710 ax-mulcl 7711 ax-addcom 7713 ax-addass 7715 ax-distr 7717 ax-i2m1 7718 ax-0lt1 7719 ax-0id 7721 ax-rnegex 7722 ax-cnre 7724 ax-pre-ltirr 7725 ax-pre-ltwlin 7726 ax-pre-lttrn 7727 ax-pre-ltadd 7729 |
This theorem depends on definitions: df-bi 116 df-dc 820 df-3or 963 df-3an 964 df-tru 1334 df-fal 1337 df-nf 1437 df-sb 1736 df-eu 2000 df-mo 2001 df-clab 2124 df-cleq 2130 df-clel 2133 df-nfc 2268 df-ne 2307 df-nel 2402 df-ral 2419 df-rex 2420 df-reu 2421 df-rab 2423 df-v 2683 df-sbc 2905 df-dif 3068 df-un 3070 df-in 3072 df-ss 3079 df-pw 3507 df-sn 3528 df-pr 3529 df-op 3531 df-uni 3732 df-int 3767 df-br 3925 df-opab 3985 df-id 4210 df-xp 4540 df-rel 4541 df-cnv 4542 df-co 4543 df-dm 4544 df-iota 5083 df-fun 5120 df-fv 5126 df-riota 5723 df-ov 5770 df-oprab 5771 df-mpo 5772 df-pnf 7795 df-mnf 7796 df-xr 7797 df-ltxr 7798 df-le 7799 df-sub 7928 df-neg 7929 df-inn 8714 df-n0 8971 df-z 9048 df-fz 9784 |
This theorem is referenced by: fzodcel 9922 iseqf1olemqcl 10252 iseqf1olemmo 10258 bcval 10488 bccmpl 10493 bcval5 10502 bcpasc 10505 bccl 10506 fisumss 11154 fsum3ser 11159 binomlem 11245 mertenslemi1 11297 |
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