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Mirrors > Home > ILE Home > Th. List > letri3 | Unicode version |
Description: Tightness of real apartness. (Contributed by NM, 14-May-1999.) |
Ref | Expression |
---|---|
letri3 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | lttri3 7844 | . . 3 | |
2 | ancom 264 | . . 3 | |
3 | 1, 2 | syl6bbr 197 | . 2 |
4 | lenlt 7840 | . . 3 | |
5 | lenlt 7840 | . . . 4 | |
6 | 5 | ancoms 266 | . . 3 |
7 | 4, 6 | anbi12d 464 | . 2 |
8 | 3, 7 | bitr4d 190 | 1 |
Colors of variables: wff set class |
Syntax hints: wn 3 wi 4 wa 103 wb 104 wceq 1331 wcel 1480 class class class wbr 3929 cr 7619 clt 7800 cle 7801 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 603 ax-in2 604 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-13 1491 ax-14 1492 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 ax-sep 4046 ax-pow 4098 ax-pr 4131 ax-un 4355 ax-setind 4452 ax-cnex 7711 ax-resscn 7712 ax-pre-ltirr 7732 ax-pre-apti 7735 |
This theorem depends on definitions: df-bi 116 df-3an 964 df-tru 1334 df-fal 1337 df-nf 1437 df-sb 1736 df-eu 2002 df-mo 2003 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-ne 2309 df-nel 2404 df-ral 2421 df-rex 2422 df-rab 2425 df-v 2688 df-dif 3073 df-un 3075 df-in 3077 df-ss 3084 df-pw 3512 df-sn 3533 df-pr 3534 df-op 3536 df-uni 3737 df-br 3930 df-opab 3990 df-xp 4545 df-cnv 4547 df-pnf 7802 df-mnf 7803 df-xr 7804 df-ltxr 7805 df-le 7806 |
This theorem is referenced by: letri3i 7862 letri3d 7879 lesub0 8241 lbreu 8703 nnle1eq1 8744 nn0le0eq0 9005 nn0lt10b 9131 zextle 9142 uz11 9348 uzin 9358 nn01to3 9409 elfz1eq 9815 fsum00 11231 dvdsabseq 11545 nn0seqcvgd 11722 |
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