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Mirrors > Home > ILE Home > Th. List > ltrelre | Unicode version |
Description: 'Less than' is a relation on real numbers. (Contributed by NM, 22-Feb-1996.) |
Ref | Expression |
---|---|
ltrelre |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-lt 6994 | . 2 | |
2 | opabssxp 4432 | . 2 | |
3 | 1, 2 | eqsstri 3029 | 1 |
Colors of variables: wff set class |
Syntax hints: wa 102 wceq 1284 wex 1421 wcel 1433 wss 2973 cop 3401 class class class wbr 3785 copab 3838 cxp 4361 c0r 6488 cltr 6493 cr 6980 cltrr 6985 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-io 662 ax-5 1376 ax-7 1377 ax-gen 1378 ax-ie1 1422 ax-ie2 1423 ax-8 1435 ax-10 1436 ax-11 1437 ax-i12 1438 ax-bndl 1439 ax-4 1440 ax-17 1459 ax-i9 1463 ax-ial 1467 ax-i5r 1468 ax-ext 2063 |
This theorem depends on definitions: df-bi 115 df-nf 1390 df-sb 1686 df-clab 2068 df-cleq 2074 df-clel 2077 df-nfc 2208 df-in 2979 df-ss 2986 df-opab 3840 df-xp 4369 df-lt 6994 |
This theorem is referenced by: ltresr 7007 |
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