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Mirrors > Home > ILE Home > Th. List > elfz1 | Unicode version |
Description: Membership in a finite set of sequential integers. (Contributed by NM, 21-Jul-2005.) |
Ref | Expression |
---|---|
elfz1 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fzval 8876 | . . 3 | |
2 | 1 | eleq2d 2107 | . 2 |
3 | breq2 3768 | . . . . 5 | |
4 | breq1 3767 | . . . . 5 | |
5 | 3, 4 | anbi12d 442 | . . . 4 |
6 | 5 | elrab 2698 | . . 3 |
7 | 3anass 889 | . . 3 | |
8 | 6, 7 | bitr4i 176 | . 2 |
9 | 2, 8 | syl6bb 185 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 97 wb 98 w3a 885 wceq 1243 wcel 1393 crab 2310 class class class wbr 3764 (class class class)co 5512 cle 7061 cz 8245 cfz 8874 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 99 ax-ia2 100 ax-ia3 101 ax-in1 544 ax-in2 545 ax-io 630 ax-5 1336 ax-7 1337 ax-gen 1338 ax-ie1 1382 ax-ie2 1383 ax-8 1395 ax-10 1396 ax-11 1397 ax-i12 1398 ax-bndl 1399 ax-4 1400 ax-14 1405 ax-17 1419 ax-i9 1423 ax-ial 1427 ax-i5r 1428 ax-ext 2022 ax-sep 3875 ax-pow 3927 ax-pr 3944 ax-setind 4262 ax-cnex 6975 ax-resscn 6976 |
This theorem depends on definitions: df-bi 110 df-3or 886 df-3an 887 df-tru 1246 df-fal 1249 df-nf 1350 df-sb 1646 df-eu 1903 df-mo 1904 df-clab 2027 df-cleq 2033 df-clel 2036 df-nfc 2167 df-ne 2206 df-ral 2311 df-rex 2312 df-rab 2315 df-v 2559 df-sbc 2765 df-dif 2920 df-un 2922 df-in 2924 df-ss 2931 df-pw 3361 df-sn 3381 df-pr 3382 df-op 3384 df-uni 3581 df-br 3765 df-opab 3819 df-id 4030 df-xp 4351 df-rel 4352 df-cnv 4353 df-co 4354 df-dm 4355 df-iota 4867 df-fun 4904 df-fv 4910 df-ov 5515 df-oprab 5516 df-mpt2 5517 df-neg 7185 df-z 8246 df-fz 8875 |
This theorem is referenced by: elfz 8880 elfz2 8881 fzen 8907 fzaddel 8922 elfzm11 8953 fznn0 8974 |
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