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| Mirrors > Home > ILE Home > Th. List > nn01to3 | Unicode version | ||
| Description: A (nonnegative) integer between 1 and 3 must be 1, 2 or 3. (Contributed by Alexander van der Vekens, 13-Sep-2018.) |
| Ref | Expression |
|---|---|
| nn01to3 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | simp2 939 |
. . . . . . 7
| |
| 2 | simp1 938 |
. . . . . . . 8
| |
| 3 | 1z 8377 |
. . . . . . . . 9
| |
| 4 | nn0z 8371 |
. . . . . . . . 9
| |
| 5 | zleloe 8398 |
. . . . . . . . 9
| |
| 6 | 3, 4, 5 | sylancr 405 |
. . . . . . . 8
|
| 7 | 2, 6 | syl 14 |
. . . . . . 7
|
| 8 | 1, 7 | mpbid 145 |
. . . . . 6
|
| 9 | 1nn0 8304 |
. . . . . . . . . . 11
| |
| 10 | nn0ltp1le 8413 |
. . . . . . . . . . 11
| |
| 11 | 9, 10 | mpan 414 |
. . . . . . . . . 10
|
| 12 | df-2 8098 |
. . . . . . . . . . 11
| |
| 13 | 12 | breq1i 3792 |
. . . . . . . . . 10
|
| 14 | 11, 13 | syl6bbr 196 |
. . . . . . . . 9
|
| 15 | 2z 8379 |
. . . . . . . . . 10
| |
| 16 | zleloe 8398 |
. . . . . . . . . 10
| |
| 17 | 15, 4, 16 | sylancr 405 |
. . . . . . . . 9
|
| 18 | 14, 17 | bitrd 186 |
. . . . . . . 8
|
| 19 | 18 | orbi1d 737 |
. . . . . . 7
|
| 20 | 2, 19 | syl 14 |
. . . . . 6
|
| 21 | 8, 20 | mpbid 145 |
. . . . 5
|
| 22 | 21 | orcomd 680 |
. . . 4
|
| 23 | orcom 679 |
. . . . 5
| |
| 24 | 23 | orbi2i 711 |
. . . 4
|
| 25 | 22, 24 | sylib 120 |
. . 3
|
| 26 | 3orass 922 |
. . 3
| |
| 27 | 25, 26 | sylibr 132 |
. 2
|
| 28 | 3mix1 1107 |
. . . . 5
| |
| 29 | 28 | eqcoms 2084 |
. . . 4
|
| 30 | 29 | a1i 9 |
. . 3
|
| 31 | 3mix2 1108 |
. . . . 5
| |
| 32 | 31 | eqcoms 2084 |
. . . 4
|
| 33 | 32 | a1i 9 |
. . 3
|
| 34 | simp3 940 |
. . . . . 6
| |
| 35 | 34 | biantrurd 299 |
. . . . 5
|
| 36 | 2nn0 8305 |
. . . . . . . 8
| |
| 37 | nn0ltp1le 8413 |
. . . . . . . 8
| |
| 38 | 36, 37 | mpan 414 |
. . . . . . 7
|
| 39 | df-3 8099 |
. . . . . . . 8
| |
| 40 | 39 | breq1i 3792 |
. . . . . . 7
|
| 41 | 38, 40 | syl6bbr 196 |
. . . . . 6
|
| 42 | 2, 41 | syl 14 |
. . . . 5
|
| 43 | 2 | nn0red 8342 |
. . . . . 6
|
| 44 | 3re 8113 |
. . . . . 6
| |
| 45 | letri3 7192 |
. . . . . 6
| |
| 46 | 43, 44, 45 | sylancl 404 |
. . . . 5
|
| 47 | 35, 42, 46 | 3bitr4d 218 |
. . . 4
|
| 48 | 3mix3 1109 |
. . . 4
| |
| 49 | 47, 48 | syl6bi 161 |
. . 3
|
| 50 | 30, 33, 49 | 3jaod 1235 |
. 2
|
| 51 | 27, 50 | mpd 13 |
1
|
| 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 576 ax-in2 577 ax-io 662 ax-5 1376 ax-7 1377 ax-gen 1378 ax-ie1 1422 ax-ie2 1423 ax-8 1435 ax-10 1436 ax-11 1437 ax-i12 1438 ax-bndl 1439 ax-4 1440 ax-13 1444 ax-14 1445 ax-17 1459 ax-i9 1463 ax-ial 1467 ax-i5r 1468 ax-ext 2063 ax-sep 3896 ax-pow 3948 ax-pr 3964 ax-un 4188 ax-setind 4280 ax-cnex 7067 ax-resscn 7068 ax-1cn 7069 ax-1re 7070 ax-icn 7071 ax-addcl 7072 ax-addrcl 7073 ax-mulcl 7074 ax-addcom 7076 ax-addass 7078 ax-distr 7080 ax-i2m1 7081 ax-0lt1 7082 ax-0id 7084 ax-rnegex 7085 ax-cnre 7087 ax-pre-ltirr 7088 ax-pre-ltwlin 7089 ax-pre-lttrn 7090 ax-pre-apti 7091 ax-pre-ltadd 7092 |
| This theorem depends on definitions: df-bi 115 df-3or 920 df-3an 921 df-tru 1287 df-fal 1290 df-nf 1390 df-sb 1686 df-eu 1944 df-mo 1945 df-clab 2068 df-cleq 2074 df-clel 2077 df-nfc 2208 df-ne 2246 df-nel 2340 df-ral 2353 df-rex 2354 df-reu 2355 df-rab 2357 df-v 2603 df-sbc 2816 df-dif 2975 df-un 2977 df-in 2979 df-ss 2986 df-pw 3384 df-sn 3404 df-pr 3405 df-op 3407 df-uni 3602 df-int 3637 df-br 3786 df-opab 3840 df-id 4048 df-xp 4369 df-rel 4370 df-cnv 4371 df-co 4372 df-dm 4373 df-iota 4887 df-fun 4924 df-fv 4930 df-riota 5488 df-ov 5535 df-oprab 5536 df-mpt2 5537 df-pnf 7155 df-mnf 7156 df-xr 7157 df-ltxr 7158 df-le 7159 df-sub 7281 df-neg 7282 df-inn 8040 df-2 8098 df-3 8099 df-n0 8289 df-z 8352 |
| This theorem is referenced by: (None) |
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