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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 10249 |
. 2
| |
| 2 | simpl 109 |
. . . . . . . . . 10
| |
| 3 | 0red 8179 |
. . . . . . . . . . . . 13
| |
| 4 | 1red 8193 |
. . . . . . . . . . . . 13
| |
| 5 | zre 9482 |
. . . . . . . . . . . . 13
| |
| 6 | 3, 4, 5 | 3jca 1203 |
. . . . . . . . . . . 12
|
| 7 | 6 | adantr 276 |
. . . . . . . . . . 11
|
| 8 | 0lt1 8305 |
. . . . . . . . . . . 12
| |
| 9 | 8 | a1i 9 |
. . . . . . . . . . 11
|
| 10 | simpr 110 |
. . . . . . . . . . 11
| |
| 11 | ltletr 8268 |
. . . . . . . . . . . 12
| |
| 12 | 11 | imp 124 |
. . . . . . . . . . 11
|
| 13 | 7, 9, 10, 12 | syl12anc 1271 |
. . . . . . . . . 10
|
| 14 | elnnz 9488 |
. . . . . . . . . 10
| |
| 15 | 2, 13, 14 | sylanbrc 417 |
. . . . . . . . 9
|
| 16 | 15 | ex 115 |
. . . . . . . 8
|
| 17 | 16 | 3ad2ant3 1046 |
. . . . . . 7
|
| 18 | 17 | com12 30 |
. . . . . 6
|
| 19 | 18 | adantr 276 |
. . . . 5
|
| 20 | 19 | impcom 125 |
. . . 4
|
| 21 | zre 9482 |
. . . . . . . . 9
| |
| 22 | zre 9482 |
. . . . . . . . 9
| |
| 23 | 21, 5, 22 | 3anim123i 1210 |
. . . . . . . 8
|
| 24 | 23 | 3com23 1235 |
. . . . . . 7
|
| 25 | letr 8261 |
. . . . . . 7
| |
| 26 | 24, 25 | syl 14 |
. . . . . 6
|
| 27 | simpl 109 |
. . . . . . . . 9
| |
| 28 | 0red 8179 |
. . . . . . . . . 10
| |
| 29 | 1red 8193 |
. . . . . . . . . 10
| |
| 30 | 22 | adantr 276 |
. . . . . . . . . 10
|
| 31 | 8 | a1i 9 |
. . . . . . . . . 10
|
| 32 | simpr 110 |
. . . . . . . . . 10
| |
| 33 | 28, 29, 30, 31, 32 | ltletrd 8602 |
. . . . . . . . 9
|
| 34 | elnnz 9488 |
. . . . . . . . 9
| |
| 35 | 27, 33, 34 | sylanbrc 417 |
. . . . . . . 8
|
| 36 | 35 | ex 115 |
. . . . . . 7
|
| 37 | 36 | 3ad2ant2 1045 |
. . . . . 6
|
| 38 | 26, 37 | syld 45 |
. . . . 5
|
| 39 | 38 | imp 124 |
. . . 4
|
| 40 | simprr 533 |
. . . 4
| |
| 41 | 20, 39, 40 | 3jca 1203 |
. . 3
|
| 42 | 1zzd 9505 |
. . . . 5
| |
| 43 | nnz 9497 |
. . . . . 6
| |
| 44 | 43 | 3ad2ant2 1045 |
. . . . 5
|
| 45 | nnz 9497 |
. . . . . 6
| |
| 46 | 45 | 3ad2ant1 1044 |
. . . . 5
|
| 47 | 42, 44, 46 | 3jca 1203 |
. . . 4
|
| 48 | nnge1 9165 |
. . . . 5
| |
| 49 | 48 | 3ad2ant1 1044 |
. . . 4
|
| 50 | simp3 1025 |
. . . 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 619 ax-in2 620 ax-io 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-13 2204 ax-14 2205 ax-ext 2213 ax-sep 4207 ax-pow 4264 ax-pr 4299 ax-un 4530 ax-setind 4635 ax-cnex 8122 ax-resscn 8123 ax-1cn 8124 ax-1re 8125 ax-icn 8126 ax-addcl 8127 ax-addrcl 8128 ax-mulcl 8129 ax-addcom 8131 ax-addass 8133 ax-distr 8135 ax-i2m1 8136 ax-0lt1 8137 ax-0id 8139 ax-rnegex 8140 ax-cnre 8142 ax-pre-ltirr 8143 ax-pre-ltwlin 8144 ax-pre-lttrn 8145 ax-pre-ltadd 8147 |
| This theorem depends on definitions: df-bi 117 df-3or 1005 df-3an 1006 df-tru 1400 df-fal 1403 df-nf 1509 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ne 2403 df-nel 2498 df-ral 2515 df-rex 2516 df-reu 2517 df-rab 2519 df-v 2804 df-sbc 3032 df-dif 3202 df-un 3204 df-in 3206 df-ss 3213 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-int 3929 df-br 4089 df-opab 4151 df-id 4390 df-xp 4731 df-rel 4732 df-cnv 4733 df-co 4734 df-dm 4735 df-iota 5286 df-fun 5328 df-fv 5334 df-riota 5970 df-ov 6020 df-oprab 6021 df-mpo 6022 df-pnf 8215 df-mnf 8216 df-xr 8217 df-ltxr 8218 df-le 8219 df-sub 8351 df-neg 8352 df-inn 9143 df-z 9479 df-fz 10243 |
| This theorem is referenced by: ubmelfzo 10444 eulerthlema 12801 gausslemma2dlem1a 15786 gausslemma2dlem2 15790 gausslemma2dlem4 15792 cvgcmp2nlemabs 16636 |
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