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Mirrors > Home > ILE Home > Th. List > ltlei | Unicode version |
Description: 'Less than' implies 'less than or equal to'. (Contributed by NM, 14-May-1999.) |
Ref | Expression |
---|---|
lt.1 |
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lt.2 |
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Ref | Expression |
---|---|
ltlei |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | lt.1 |
. 2
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2 | lt.2 |
. 2
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3 | ltle 7342 |
. 2
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4 | 1, 2, 3 | mp2an 417 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() |
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-in1 577 ax-in2 578 ax-io 663 ax-5 1377 ax-7 1378 ax-gen 1379 ax-ie1 1423 ax-ie2 1424 ax-8 1436 ax-10 1437 ax-11 1438 ax-i12 1439 ax-bndl 1440 ax-4 1441 ax-13 1445 ax-14 1446 ax-17 1460 ax-i9 1464 ax-ial 1468 ax-i5r 1469 ax-ext 2065 ax-sep 3917 ax-pow 3969 ax-pr 3993 ax-un 4217 ax-setind 4309 ax-cnex 7206 ax-resscn 7207 ax-pre-ltirr 7227 ax-pre-lttrn 7229 |
This theorem depends on definitions: df-bi 115 df-3an 922 df-tru 1288 df-fal 1291 df-nf 1391 df-sb 1688 df-eu 1946 df-mo 1947 df-clab 2070 df-cleq 2076 df-clel 2079 df-nfc 2212 df-ne 2250 df-nel 2345 df-ral 2358 df-rex 2359 df-rab 2362 df-v 2613 df-dif 2985 df-un 2987 df-in 2989 df-ss 2996 df-pw 3403 df-sn 3423 df-pr 3424 df-op 3426 df-uni 3623 df-br 3807 df-opab 3861 df-xp 4398 df-cnv 4400 df-pnf 7294 df-mnf 7295 df-xr 7296 df-ltxr 7297 df-le 7298 |
This theorem is referenced by: ltleii 7357 |
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