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Mirrors > Home > ILE Home > Th. List > Mathboxes > inffz | Unicode version |
Description: The infimum of a finite sequence of integers. (Contributed by Scott Fenton, 8-Aug-2013.) (Revised by Jim Kingdon, 15-Oct-2022.) |
Ref | Expression |
---|---|
inffz | inf |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simprl 520 | . . . 4 | |
2 | 1 | zred 9166 | . . 3 |
3 | simprr 521 | . . . 4 | |
4 | 3 | zred 9166 | . . 3 |
5 | 2, 4 | lttri3d 7871 | . 2 |
6 | eluzel2 9324 | . 2 | |
7 | eluzfz1 9804 | . 2 | |
8 | elfzle1 9800 | . . . 4 | |
9 | 8 | adantl 275 | . . 3 |
10 | 6 | zred 9166 | . . . 4 |
11 | elfzelz 9799 | . . . . 5 | |
12 | 11 | zred 9166 | . . . 4 |
13 | lenlt 7833 | . . . 4 | |
14 | 10, 12, 13 | syl2an 287 | . . 3 |
15 | 9, 14 | mpbid 146 | . 2 |
16 | 5, 6, 7, 15 | infminti 6907 | 1 inf |
Colors of variables: wff set class |
Syntax hints: wn 3 wi 4 wa 103 wb 104 wceq 1331 wcel 1480 class class class wbr 3924 cfv 5118 (class class class)co 5767 infcinf 6863 cr 7612 clt 7793 cle 7794 cz 9047 cuz 9319 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-pre-ltirr 7725 ax-pre-apti 7728 |
This theorem depends on definitions: df-bi 116 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-rmo 2422 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-br 3925 df-opab 3985 df-mpt 3986 df-id 4210 df-xp 4540 df-rel 4541 df-cnv 4542 df-co 4543 df-dm 4544 df-rn 4545 df-res 4546 df-ima 4547 df-iota 5083 df-fun 5120 df-fn 5121 df-f 5122 df-fv 5126 df-riota 5723 df-ov 5770 df-oprab 5771 df-mpo 5772 df-sup 6864 df-inf 6865 df-pnf 7795 df-mnf 7796 df-xr 7797 df-ltxr 7798 df-le 7799 df-neg 7929 df-z 9048 df-uz 9320 df-fz 9784 |
This theorem is referenced by: (None) |
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