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Mirrors > Home > ILE Home > Th. List > fimaxq | Unicode version |
Description: A finite set of rational numbers has a maximum. (Contributed by Jim Kingdon, 6-Sep-2022.) |
Ref | Expression |
---|---|
fimaxq |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | qssre 9317 |
. . . . 5
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2 | sstr 3069 |
. . . . . 6
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3 | ltso 7758 |
. . . . . . 7
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4 | sopo 4193 |
. . . . . . 7
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5 | 3, 4 | ax-mp 7 |
. . . . . 6
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6 | poss 4178 |
. . . . . 6
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7 | 2, 5, 6 | mpisyl 1403 |
. . . . 5
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8 | 1, 7 | mpan2 419 |
. . . 4
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9 | 8 | 3ad2ant1 983 |
. . 3
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10 | simpl1 965 |
. . . . . 6
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11 | simprl 503 |
. . . . . 6
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12 | 10, 11 | sseldd 3062 |
. . . . 5
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13 | simprr 504 |
. . . . . 6
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14 | 10, 13 | sseldd 3062 |
. . . . 5
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15 | qtri3or 9906 |
. . . . 5
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16 | 12, 14, 15 | syl2anc 406 |
. . . 4
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17 | 16 | ralrimivva 2486 |
. . 3
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18 | simp2 963 |
. . 3
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19 | simp3 964 |
. . 3
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20 | 9, 17, 18, 19 | fimax2gtri 6745 |
. 2
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21 | simpll1 1001 |
. . . . . . 7
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22 | simpr 109 |
. . . . . . 7
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
23 | 21, 22 | sseldd 3062 |
. . . . . 6
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24 | qre 9312 |
. . . . . 6
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25 | 23, 24 | syl 14 |
. . . . 5
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26 | simplr 502 |
. . . . . . 7
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27 | 21, 26 | sseldd 3062 |
. . . . . 6
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28 | qre 9312 |
. . . . . 6
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29 | 27, 28 | syl 14 |
. . . . 5
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30 | 25, 29 | lenltd 7796 |
. . . 4
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31 | 30 | ralbidva 2405 |
. . 3
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32 | 31 | rexbidva 2406 |
. 2
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33 | 20, 32 | mpbird 166 |
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 105 ax-ia2 106 ax-ia3 107 ax-in1 586 ax-in2 587 ax-io 681 ax-5 1404 ax-7 1405 ax-gen 1406 ax-ie1 1450 ax-ie2 1451 ax-8 1463 ax-10 1464 ax-11 1465 ax-i12 1466 ax-bndl 1467 ax-4 1468 ax-13 1472 ax-14 1473 ax-17 1487 ax-i9 1491 ax-ial 1495 ax-i5r 1496 ax-ext 2095 ax-coll 4001 ax-sep 4004 ax-nul 4012 ax-pow 4056 ax-pr 4089 ax-un 4313 ax-setind 4410 ax-iinf 4460 ax-cnex 7629 ax-resscn 7630 ax-1cn 7631 ax-1re 7632 ax-icn 7633 ax-addcl 7634 ax-addrcl 7635 ax-mulcl 7636 ax-mulrcl 7637 ax-addcom 7638 ax-mulcom 7639 ax-addass 7640 ax-mulass 7641 ax-distr 7642 ax-i2m1 7643 ax-0lt1 7644 ax-1rid 7645 ax-0id 7646 ax-rnegex 7647 ax-precex 7648 ax-cnre 7649 ax-pre-ltirr 7650 ax-pre-ltwlin 7651 ax-pre-lttrn 7652 ax-pre-apti 7653 ax-pre-ltadd 7654 ax-pre-mulgt0 7655 ax-pre-mulext 7656 |
This theorem depends on definitions: df-bi 116 df-dc 803 df-3or 944 df-3an 945 df-tru 1315 df-fal 1318 df-nf 1418 df-sb 1717 df-eu 1976 df-mo 1977 df-clab 2100 df-cleq 2106 df-clel 2109 df-nfc 2242 df-ne 2281 df-nel 2376 df-ral 2393 df-rex 2394 df-reu 2395 df-rmo 2396 df-rab 2397 df-v 2657 df-sbc 2877 df-csb 2970 df-dif 3037 df-un 3039 df-in 3041 df-ss 3048 df-nul 3328 df-if 3439 df-pw 3476 df-sn 3497 df-pr 3498 df-op 3500 df-uni 3701 df-int 3736 df-iun 3779 df-br 3894 df-opab 3948 df-mpt 3949 df-tr 3985 df-id 4173 df-po 4176 df-iso 4177 df-iord 4246 df-on 4248 df-suc 4251 df-iom 4463 df-xp 4503 df-rel 4504 df-cnv 4505 df-co 4506 df-dm 4507 df-rn 4508 df-res 4509 df-ima 4510 df-iota 5044 df-fun 5081 df-fn 5082 df-f 5083 df-f1 5084 df-fo 5085 df-f1o 5086 df-fv 5087 df-riota 5682 df-ov 5729 df-oprab 5730 df-mpo 5731 df-1st 5989 df-2nd 5990 df-er 6380 df-en 6586 df-fin 6588 df-pnf 7719 df-mnf 7720 df-xr 7721 df-ltxr 7722 df-le 7723 df-sub 7851 df-neg 7852 df-reap 8248 df-ap 8255 df-div 8339 df-inn 8624 df-n0 8875 df-z 8952 df-q 9307 df-rp 9337 |
This theorem is referenced by: zfz1iso 10470 |
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