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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 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | lttri3 8099 |
. . 3
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2 | ancom 266 |
. . 3
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3 | 1, 2 | bitr4di 198 |
. 2
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4 | lenlt 8095 |
. . 3
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5 | lenlt 8095 |
. . . 4
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6 | 5 | ancoms 268 |
. . 3
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7 | 4, 6 | anbi12d 473 |
. 2
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8 | 3, 7 | bitr4d 191 |
1
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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 615 ax-in2 616 ax-io 710 ax-5 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-13 2166 ax-14 2167 ax-ext 2175 ax-sep 4147 ax-pow 4203 ax-pr 4238 ax-un 4464 ax-setind 4569 ax-cnex 7963 ax-resscn 7964 ax-pre-ltirr 7984 ax-pre-apti 7987 |
This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-fal 1370 df-nf 1472 df-sb 1774 df-eu 2045 df-mo 2046 df-clab 2180 df-cleq 2186 df-clel 2189 df-nfc 2325 df-ne 2365 df-nel 2460 df-ral 2477 df-rex 2478 df-rab 2481 df-v 2762 df-dif 3155 df-un 3157 df-in 3159 df-ss 3166 df-pw 3603 df-sn 3624 df-pr 3625 df-op 3627 df-uni 3836 df-br 4030 df-opab 4091 df-xp 4665 df-cnv 4667 df-pnf 8056 df-mnf 8057 df-xr 8058 df-ltxr 8059 df-le 8060 |
This theorem is referenced by: eqlelt 8106 letri3i 8118 letri3d 8135 lesub0 8498 lbreu 8964 nnle1eq1 9006 nn0le0eq0 9268 nn0lt10b 9397 zextle 9408 uz11 9615 uzin 9625 nn01to3 9682 elfz1eq 10101 fsum00 11605 dvdsabseq 11989 nn0seqcvgd 12179 infpnlem1 12497 lgsdir 15151 lgsabs1 15155 |
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