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| Mirrors > Home > ILE Home > Th. List > elfz1b | Unicode version | ||
| Description: Membership in a 1 based finite set of sequential integers. (Contributed by AV, 30-Oct-2018.) |
| Ref | Expression |
|---|---|
| elfz1b |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elfz2 10240 |
. 2
| |
| 2 | simpl 109 |
. . . . . . . . . 10
| |
| 3 | 0red 8170 |
. . . . . . . . . . . . 13
| |
| 4 | 1red 8184 |
. . . . . . . . . . . . 13
| |
| 5 | zre 9473 |
. . . . . . . . . . . . 13
| |
| 6 | 3, 4, 5 | 3jca 1201 |
. . . . . . . . . . . 12
|
| 7 | 6 | adantr 276 |
. . . . . . . . . . 11
|
| 8 | 0lt1 8296 |
. . . . . . . . . . . 12
| |
| 9 | 8 | a1i 9 |
. . . . . . . . . . 11
|
| 10 | simpr 110 |
. . . . . . . . . . 11
| |
| 11 | ltletr 8259 |
. . . . . . . . . . . 12
| |
| 12 | 11 | imp 124 |
. . . . . . . . . . 11
|
| 13 | 7, 9, 10, 12 | syl12anc 1269 |
. . . . . . . . . 10
|
| 14 | elnnz 9479 |
. . . . . . . . . 10
| |
| 15 | 2, 13, 14 | sylanbrc 417 |
. . . . . . . . 9
|
| 16 | 15 | ex 115 |
. . . . . . . 8
|
| 17 | 16 | 3ad2ant3 1044 |
. . . . . . 7
|
| 18 | 17 | com12 30 |
. . . . . 6
|
| 19 | 18 | adantr 276 |
. . . . 5
|
| 20 | 19 | impcom 125 |
. . . 4
|
| 21 | zre 9473 |
. . . . . . . . 9
| |
| 22 | zre 9473 |
. . . . . . . . 9
| |
| 23 | 21, 5, 22 | 3anim123i 1208 |
. . . . . . . 8
|
| 24 | 23 | 3com23 1233 |
. . . . . . 7
|
| 25 | letr 8252 |
. . . . . . 7
| |
| 26 | 24, 25 | syl 14 |
. . . . . 6
|
| 27 | simpl 109 |
. . . . . . . . 9
| |
| 28 | 0red 8170 |
. . . . . . . . . 10
| |
| 29 | 1red 8184 |
. . . . . . . . . 10
| |
| 30 | 22 | adantr 276 |
. . . . . . . . . 10
|
| 31 | 8 | a1i 9 |
. . . . . . . . . 10
|
| 32 | simpr 110 |
. . . . . . . . . 10
| |
| 33 | 28, 29, 30, 31, 32 | ltletrd 8593 |
. . . . . . . . 9
|
| 34 | elnnz 9479 |
. . . . . . . . 9
| |
| 35 | 27, 33, 34 | sylanbrc 417 |
. . . . . . . 8
|
| 36 | 35 | ex 115 |
. . . . . . 7
|
| 37 | 36 | 3ad2ant2 1043 |
. . . . . 6
|
| 38 | 26, 37 | syld 45 |
. . . . 5
|
| 39 | 38 | imp 124 |
. . . 4
|
| 40 | simprr 531 |
. . . 4
| |
| 41 | 20, 39, 40 | 3jca 1201 |
. . 3
|
| 42 | 1zzd 9496 |
. . . . 5
| |
| 43 | nnz 9488 |
. . . . . 6
| |
| 44 | 43 | 3ad2ant2 1043 |
. . . . 5
|
| 45 | nnz 9488 |
. . . . . 6
| |
| 46 | 45 | 3ad2ant1 1042 |
. . . . 5
|
| 47 | 42, 44, 46 | 3jca 1201 |
. . . 4
|
| 48 | nnge1 9156 |
. . . . 5
| |
| 49 | 48 | 3ad2ant1 1042 |
. . . 4
|
| 50 | simp3 1023 |
. . . 4
| |
| 51 | 47, 49, 50 | jca32 310 |
. . 3
|
| 52 | 41, 51 | impbii 126 |
. 2
|
| 53 | 1, 52 | bitri 184 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 617 ax-in2 618 ax-io 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-13 2202 ax-14 2203 ax-ext 2211 ax-sep 4205 ax-pow 4262 ax-pr 4297 ax-un 4528 ax-setind 4633 ax-cnex 8113 ax-resscn 8114 ax-1cn 8115 ax-1re 8116 ax-icn 8117 ax-addcl 8118 ax-addrcl 8119 ax-mulcl 8120 ax-addcom 8122 ax-addass 8124 ax-distr 8126 ax-i2m1 8127 ax-0lt1 8128 ax-0id 8130 ax-rnegex 8131 ax-cnre 8133 ax-pre-ltirr 8134 ax-pre-ltwlin 8135 ax-pre-lttrn 8136 ax-pre-ltadd 8138 |
| This theorem depends on definitions: df-bi 117 df-3or 1003 df-3an 1004 df-tru 1398 df-fal 1401 df-nf 1507 df-sb 1809 df-eu 2080 df-mo 2081 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ne 2401 df-nel 2496 df-ral 2513 df-rex 2514 df-reu 2515 df-rab 2517 df-v 2802 df-sbc 3030 df-dif 3200 df-un 3202 df-in 3204 df-ss 3211 df-pw 3652 df-sn 3673 df-pr 3674 df-op 3676 df-uni 3892 df-int 3927 df-br 4087 df-opab 4149 df-id 4388 df-xp 4729 df-rel 4730 df-cnv 4731 df-co 4732 df-dm 4733 df-iota 5284 df-fun 5326 df-fv 5332 df-riota 5966 df-ov 6016 df-oprab 6017 df-mpo 6018 df-pnf 8206 df-mnf 8207 df-xr 8208 df-ltxr 8209 df-le 8210 df-sub 8342 df-neg 8343 df-inn 9134 df-z 9470 df-fz 10234 |
| This theorem is referenced by: ubmelfzo 10435 eulerthlema 12792 gausslemma2dlem1a 15777 gausslemma2dlem2 15781 gausslemma2dlem4 15783 cvgcmp2nlemabs 16572 |
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