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| Mirrors > Home > ILE Home > Th. List > elfzd | Unicode version | ||
| Description: Membership in a finite set of sequential integers. (Contributed by Glauco Siliprandi, 23-Oct-2021.) |
| Ref | Expression |
|---|---|
| elfzd.1 |
|
| elfzd.2 |
|
| elfzd.3 |
|
| elfzd.4 |
|
| elfzd.5 |
|
| Ref | Expression |
|---|---|
| elfzd |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elfzd.1 |
. . . 4
| |
| 2 | elfzd.2 |
. . . 4
| |
| 3 | elfzd.3 |
. . . 4
| |
| 4 | 1, 2, 3 | 3jca 1208 |
. . 3
|
| 5 | elfzd.4 |
. . 3
| |
| 6 | elfzd.5 |
. . 3
| |
| 7 | 4, 5, 6 | jca32 310 |
. 2
|
| 8 | elfz2 10429 |
. 2
| |
| 9 | 7, 8 | sylibr 134 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 623 ax-in2 624 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4249 ax-pow 4311 ax-pr 4346 ax-setind 4684 ax-cnex 8271 ax-resscn 8272 |
| This proof depends on definitions: df-bi 117 df-3or 1010 df-3an 1011 df-tru 1405 df-fal 1408 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ne 2421 df-ral 2533 df-rex 2534 df-rab 2537 df-v 2823 df-sbc 3052 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-br 4131 df-opab 4193 df-id 4438 df-xp 4780 df-rel 4781 df-cnv 4782 df-co 4783 df-dm 4784 df-iota 5337 df-fun 5379 df-fv 5385 df-ov 6088 df-oprab 6089 df-mpo 6090 df-neg 8502 df-z 9650 df-fz 10423 |
| This theorem is used by: fzoun 10601 seqf1oglem1 10971 seqfeq4g 10983 nn0sqdc 11162 pfxccat3 11522 pwbdvds 12964 hashdvds 13022 4sqexercise1 13200 4sqexercise2 13201 4sqlemsdc 13202 ballotfilemsdom 13307 ballotfilemsel1i 13308 ballotfilemsima 13311 ballotfilemfrcn0 13325 gzsumshift 14233 psrbaglefifi 15147 bcmono 16265 lgseisenlem1 16355 lgsquadlem1 16362 |
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