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| Mirrors > Home > ILE Home > Th. List > eluzuzle | Unicode version | ||
| Description: An integer in an upper set of integers is an element of an upper set of integers with a smaller bound. (Contributed by Alexander van der Vekens, 17-Jun-2018.) |
| Ref | Expression |
|---|---|
| eluzuzle |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eluz2 9822 |
. 2
| |
| 2 | simpll 527 |
. . . 4
| |
| 3 | simpr2 1031 |
. . . 4
| |
| 4 | zre 9544 |
. . . . . 6
| |
| 5 | 4 | ad2antrr 488 |
. . . . 5
|
| 6 | zre 9544 |
. . . . . . 7
| |
| 7 | 6 | 3ad2ant1 1045 |
. . . . . 6
|
| 8 | 7 | adantl 277 |
. . . . 5
|
| 9 | zre 9544 |
. . . . . . 7
| |
| 10 | 9 | 3ad2ant2 1046 |
. . . . . 6
|
| 11 | 10 | adantl 277 |
. . . . 5
|
| 12 | simplr 529 |
. . . . 5
| |
| 13 | simpr3 1032 |
. . . . 5
| |
| 14 | 5, 8, 11, 12, 13 | letrd 8362 |
. . . 4
|
| 15 | eluz2 9822 |
. . . 4
| |
| 16 | 2, 3, 14, 15 | syl3anbrc 1208 |
. . 3
|
| 17 | 16 | ex 115 |
. 2
|
| 18 | 1, 17 | biimtrid 152 |
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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2204 ax-14 2205 ax-ext 2213 ax-sep 4212 ax-pow 4270 ax-pr 4305 ax-un 4536 ax-setind 4641 ax-cnex 8183 ax-resscn 8184 ax-pre-ltwlin 8205 |
| This theorem depends on definitions: df-bi 117 df-3or 1006 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-ne 2404 df-nel 2499 df-ral 2516 df-rex 2517 df-rab 2520 df-v 2805 df-sbc 3033 df-dif 3203 df-un 3205 df-in 3207 df-ss 3214 df-pw 3658 df-sn 3679 df-pr 3680 df-op 3682 df-uni 3899 df-br 4094 df-opab 4156 df-mpt 4157 df-id 4396 df-xp 4737 df-rel 4738 df-cnv 4739 df-co 4740 df-dm 4741 df-rn 4742 df-res 4743 df-ima 4744 df-iota 5293 df-fun 5335 df-fn 5336 df-f 5337 df-fv 5341 df-ov 6031 df-pnf 8275 df-mnf 8276 df-xr 8277 df-ltxr 8278 df-le 8279 df-neg 8412 df-z 9541 df-uz 9817 |
| This theorem is referenced by: uzuzle23 9857 uzuzle24 9858 uzuzle34 9859 eluz2nn 9861 eluz4eluz2 9863 eluzge3nn 9867 |
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