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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 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fztri3or 9451 |
. 2
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2 | zltnle 8794 |
. . . . . . 7
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3 | 2 | 3adant3 963 |
. . . . . 6
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4 | simpl 107 |
. . . . . . 7
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5 | 4 | con3i 597 |
. . . . . 6
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6 | 3, 5 | syl6bi 161 |
. . . . 5
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7 | elfz 9428 |
. . . . . 6
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8 | 7 | biimpd 142 |
. . . . 5
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9 | 6, 8 | nsyld 612 |
. . . 4
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10 | olc 667 |
. . . . 5
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11 | df-dc 781 |
. . . . 5
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12 | 10, 11 | sylibr 132 |
. . . 4
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13 | 9, 12 | syl6 33 |
. . 3
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14 | orc 668 |
. . . . 5
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15 | 14, 11 | sylibr 132 |
. . . 4
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16 | 15 | a1i 9 |
. . 3
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17 | zltnle 8794 |
. . . . . . . 8
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18 | 17 | ancoms 264 |
. . . . . . 7
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19 | 18 | 3adant2 962 |
. . . . . 6
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20 | simpr 108 |
. . . . . . 7
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21 | 20 | con3i 597 |
. . . . . 6
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22 | 19, 21 | syl6bi 161 |
. . . . 5
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23 | 22, 8 | nsyld 612 |
. . . 4
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24 | 23, 12 | syl6 33 |
. . 3
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25 | 13, 16, 24 | 3jaod 1240 |
. 2
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26 | 1, 25 | mpd 13 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-in1 579 ax-in2 580 ax-io 665 ax-5 1381 ax-7 1382 ax-gen 1383 ax-ie1 1427 ax-ie2 1428 ax-8 1440 ax-10 1441 ax-11 1442 ax-i12 1443 ax-bndl 1444 ax-4 1445 ax-13 1449 ax-14 1450 ax-17 1464 ax-i9 1468 ax-ial 1472 ax-i5r 1473 ax-ext 2070 ax-sep 3957 ax-pow 4009 ax-pr 4036 ax-un 4260 ax-setind 4353 ax-cnex 7434 ax-resscn 7435 ax-1cn 7436 ax-1re 7437 ax-icn 7438 ax-addcl 7439 ax-addrcl 7440 ax-mulcl 7441 ax-addcom 7443 ax-addass 7445 ax-distr 7447 ax-i2m1 7448 ax-0lt1 7449 ax-0id 7451 ax-rnegex 7452 ax-cnre 7454 ax-pre-ltirr 7455 ax-pre-ltwlin 7456 ax-pre-lttrn 7457 ax-pre-ltadd 7459 |
This theorem depends on definitions: df-bi 115 df-dc 781 df-3or 925 df-3an 926 df-tru 1292 df-fal 1295 df-nf 1395 df-sb 1693 df-eu 1951 df-mo 1952 df-clab 2075 df-cleq 2081 df-clel 2084 df-nfc 2217 df-ne 2256 df-nel 2351 df-ral 2364 df-rex 2365 df-reu 2366 df-rab 2368 df-v 2621 df-sbc 2841 df-dif 3001 df-un 3003 df-in 3005 df-ss 3012 df-pw 3431 df-sn 3452 df-pr 3453 df-op 3455 df-uni 3654 df-int 3689 df-br 3846 df-opab 3900 df-id 4120 df-xp 4444 df-rel 4445 df-cnv 4446 df-co 4447 df-dm 4448 df-iota 4980 df-fun 5017 df-fv 5023 df-riota 5608 df-ov 5655 df-oprab 5656 df-mpt2 5657 df-pnf 7522 df-mnf 7523 df-xr 7524 df-ltxr 7525 df-le 7526 df-sub 7653 df-neg 7654 df-inn 8421 df-n0 8672 df-z 8749 df-fz 9423 |
This theorem is referenced by: fzodcel 9559 iseqf1olemqcl 9911 iseqf1olemmo 9917 bcval 10153 bccmpl 10158 ibcval5 10167 bcpasc 10170 bccl 10171 fisumss 10780 fisumser 10786 binomlem 10873 mertenslemi1 10925 |
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