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Mirrors > Home > ILE Home > Th. List > fzfig | Unicode version |
Description: A finite interval of integers is finite. (Contributed by Jim Kingdon, 19-May-2020.) |
Ref | Expression |
---|---|
fzfig |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eluz 8713 |
. . 3
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2 | eqid 2082 |
. . . . . . 7
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3 | 2 | frechashgf1o 9510 |
. . . . . 6
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4 | peano2uz 8752 |
. . . . . . 7
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5 | uznn0sub 8731 |
. . . . . . 7
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6 | 4, 5 | syl 14 |
. . . . . 6
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7 | f1ocnvdm 5452 |
. . . . . 6
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8 | 3, 6, 7 | sylancr 405 |
. . . . 5
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9 | nnfi 6407 |
. . . . 5
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10 | 8, 9 | syl 14 |
. . . 4
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11 | 2 | frecfzen2 9509 |
. . . 4
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12 | enfii 6409 |
. . . 4
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13 | 10, 11, 12 | syl2anc 403 |
. . 3
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14 | 1, 13 | syl6bir 162 |
. 2
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15 | zltnle 8478 |
. . . . 5
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16 | 15 | ancoms 264 |
. . . 4
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
17 | fzn 9137 |
. . . 4
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18 | 16, 17 | bitr3d 188 |
. . 3
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19 | 0fin 6418 |
. . . 4
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20 | eleq1 2142 |
. . . 4
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21 | 19, 20 | mpbiri 166 |
. . 3
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22 | 18, 21 | syl6bi 161 |
. 2
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23 | zdcle 8505 |
. . 3
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24 | df-dc 777 |
. . 3
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
25 | 23, 24 | sylib 120 |
. 2
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26 | 14, 22, 25 | mpjaod 671 |
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 577 ax-in2 578 ax-io 663 ax-5 1377 ax-7 1378 ax-gen 1379 ax-ie1 1423 ax-ie2 1424 ax-8 1436 ax-10 1437 ax-11 1438 ax-i12 1439 ax-bndl 1440 ax-4 1441 ax-13 1445 ax-14 1446 ax-17 1460 ax-i9 1464 ax-ial 1468 ax-i5r 1469 ax-ext 2064 ax-coll 3901 ax-sep 3904 ax-nul 3912 ax-pow 3956 ax-pr 3972 ax-un 4196 ax-setind 4288 ax-iinf 4337 ax-cnex 7129 ax-resscn 7130 ax-1cn 7131 ax-1re 7132 ax-icn 7133 ax-addcl 7134 ax-addrcl 7135 ax-mulcl 7136 ax-addcom 7138 ax-addass 7140 ax-distr 7142 ax-i2m1 7143 ax-0lt1 7144 ax-0id 7146 ax-rnegex 7147 ax-cnre 7149 ax-pre-ltirr 7150 ax-pre-ltwlin 7151 ax-pre-lttrn 7152 ax-pre-apti 7153 ax-pre-ltadd 7154 |
This theorem depends on definitions: df-bi 115 df-dc 777 df-3or 921 df-3an 922 df-tru 1288 df-fal 1291 df-nf 1391 df-sb 1687 df-eu 1945 df-mo 1946 df-clab 2069 df-cleq 2075 df-clel 2078 df-nfc 2209 df-ne 2247 df-nel 2341 df-ral 2354 df-rex 2355 df-reu 2356 df-rab 2358 df-v 2604 df-sbc 2817 df-csb 2910 df-dif 2976 df-un 2978 df-in 2980 df-ss 2987 df-nul 3259 df-pw 3392 df-sn 3412 df-pr 3413 df-op 3415 df-uni 3610 df-int 3645 df-iun 3688 df-br 3794 df-opab 3848 df-mpt 3849 df-tr 3884 df-id 4056 df-iord 4129 df-on 4131 df-ilim 4132 df-suc 4134 df-iom 4340 df-xp 4377 df-rel 4378 df-cnv 4379 df-co 4380 df-dm 4381 df-rn 4382 df-res 4383 df-ima 4384 df-iota 4897 df-fun 4934 df-fn 4935 df-f 4936 df-f1 4937 df-fo 4938 df-f1o 4939 df-fv 4940 df-riota 5499 df-ov 5546 df-oprab 5547 df-mpt2 5548 df-1st 5798 df-2nd 5799 df-recs 5954 df-frec 6040 df-1o 6065 df-er 6172 df-en 6288 df-fin 6290 df-pnf 7217 df-mnf 7218 df-xr 7219 df-ltxr 7220 df-le 7221 df-sub 7348 df-neg 7349 df-inn 8107 df-n0 8356 df-z 8433 df-uz 8701 df-fz 9106 |
This theorem is referenced by: fzfigd 9513 fzofig 9514 isfinite4im 9817 |
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